Updated on 2026/07/18

写真a

 
IKARASHI KIKUO
 
Organization
School of Environment and Society Professor
Title
Professor
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Degree

  • Master of Engineering ( Tokyo Institute of Technology )

  • Doctor of Engineering ( Tokyo Institute of Technology )

Research Areas

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Building structures and materials

Education

  • Tokyo Institute of Technology   Graduate School, Division of Science and Engineering

    - 1992

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  • 東京工業大学大学院   理工学研究科   建築学

    - 1992

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    Country: Japan

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  • Tokyo Institute of Technology   School of Engineering   Dept. of Architecture and Building Engineering

    - 1989

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    Country: Japan

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Research History

Professional Memberships

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Papers

  • A METHOD FOR EVALUATION OF ELASTIC LOCAL BUCKLING STRENGTH OF I-SHAPED BEAM WITH CIRCULAR WEB OPENINGS Reviewed

    Riku Watanabe, Kikuo Ikarashi, Kazuya Mitsui

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 91 ( No. 842 )   500–511   2026.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Architectural Institute of Japan  

    In consideration of hole of I-shaped beam web causing reduction of buckling strength, evaluation for buckling coefficient of I-shaped beam web with holes have been conducted. However, numerous studies have been conducted on square plate under pure shear, and not considered buckling of web under nonuniform bending that acts web of actual I-shaped beam. This study reveals the buckling coefficient of web with holes with any aspect ratio under pure shear or nonuniform bending. Using FEA, it investigates the effect of hole size and arrangement on local buckling, and propose evaluation method for buckling coefficient of plate with holes.

    DOI: 10.3130/aijs.91.500

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  • EVALUATION OF STRUCTURAL PERFORMANCE OF BUILT-UP I-SHAPED BEAM MEMBERS WITH RESISTANCE DEGRADATION DUE TO LOCAL BUCKLING AND DUCTILE CRACK PROPAGATION UNDER CYCLIC LOADING Reviewed

    Kikuo Ikarashi, Kazuya Mitsui, Koshiro Mori, Seiya Kimura, Mamoru Uchida, Masato Nikaido, Ryohei Kuwada

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 91 ( No. 840 )   306–317   2026.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Architectural Institute of Japan  

    This study investigates the influence of member geometry and loading history on the deformation capacity of welded I-shaped steel beam members under cyclic loading that permits local buckling. Three ultimate limit states are defined, and deformation capacity curves up to each state are established based on the lower-bound results from constant-amplitude cyclic loading tests. It was confirmed that beam members experiencing large-amplitude cycles inducing local buckling exhibit improved deformation capacity compared to those with lower local buckling damage. This is attributed to strength degradation in the beam and the resulting mitigation of plastic strain accumulation at the welded ends.

    DOI: 10.3130/aijs.91.306

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  • Effect of the presence of access hole at beam end of full penetration welding to ultimate states of I-shaped beam members under cyclic loading Reviewed

    Keisuke Kuramochi, KIKUO IKARASHI, Kazuya Mitsui, 井戸田 秀樹

    Proceedings of Constructional Steel   Vol. 33   617 - 627   2025.11

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  • STRUCTURAL PERFORMANCE EVALUATION OF I-SHAPED BEAM MEMBERS CONSIDERING LOCAL BUCKLING COLLAPSE MODE Reviewed

    Kazuya Mitsui, Kikuo Ikarashi

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 90 ( Issue 835 )   1085 - 1096   2025.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Architectural Institute of Japan  

    This paper investigates the collapse modes of local buckling in I-shaped beam members subjected to monotonic loading, aiming to enhance the accuracy of structural performance evaluation. Parametric finite element analysis explores the influence of member geometry and stress state on collapse modes of local buckling. Index PFB and αp are proposed to classify the collapse modes of local buckling that develop after plasticization. Furthermore, a novel structural performance evaluation index WFp is presented, which utilize the proposed index. This index WFp enables more precise structural performance assessment by considering the local buckling collapse modes associated with various member geometries.

    DOI: 10.3130/aijs.90.1085

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  • 局部座屈およびき裂により耐力劣化が生じるH形断面梁の繰返し履歴下における崩壊形式

    五十嵐規矩夫, 森光士郎, 三井和也, 木村征也, 内田衞, 二階堂真人, 桑田涼平, 吉本隼

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1357–1358   2025.7

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  • 地震後の動ひずみ計測に基づく梁端局部座屈後の残余性能評価に関する研究(1)検討方法 レジリエンス評価に基づく鋼構造建築物の耐震設計法および地震後の継続使用・復旧対応に関する研究 その28

    伊山潤, 三井和也, 森光士郎, 五十嵐規矩夫, 佐野航, 魚住明彦, 木村征也, 常木康弘, 小野潤一郎, 吉田和彦, 貞許美和

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1055–1056   2025.7

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  • 偏心圧縮力を受ける冷間成形リップ溝形断面部材の最大耐力評価手法

    槇枝諒祐, 三井和也, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1315–1316   2025.7

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  • 地震後の動ひずみ計測に基づく梁端局部座屈後の残余性能評価に関する研究(2)ひずみと残余性能の関係レジリエンス評価に基づく鋼構造建築物の耐震設計法および地震後の継続使用・復旧対応に関する研究 その29

    佐野航, 伊山潤, 三井和也, 森光士郎, 五十嵐規矩夫, 魚住明彦, 木村征也, 常木康弘, 小 野潤一郎, 吉田和彦, 貞許美和

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1057–1058   2025.7

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  • 円形開口を有するH形断面梁ウェブの座屈耐力評価

    渡部琳久, 五十嵐規矩夫, 三井和也

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1391–1392   2025.7

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  • 梁端溶接形式が繰返し履歴を受けるH形断面梁の構造性能に及ぼす影響

    倉持圭介, 五十嵐規矩夫, 井戸田秀樹, 三井和也, 木村征也, 内田衞, 二階堂真人, 桑田涼平, 吉本隼

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1361–1362   2025.7

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  • 片縁端をリブ補剛された薄鋼板の弾性座屈挙動と弾性座屈耐力

    Tuvshinzaya Ganzorig, 五十嵐規矩夫, 三井和也

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1317–1318   2025.7

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  • Structural Performance Evaluation of I-Shaped Beam Members Based on Classification Indices for Local Buckling Collapse Modes

    Kazuya Mitsui, KIKUO IKARASHI

    Summaries of technical papers of annual meeting   Vol. C-Ⅲ   1355–1356   2025.7

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  • 地震後動ひずみ計測による局部座屈耐力劣化の推定技術に関する研究 (3) 局部座屈変形との対応 レジリエンス評価に基づく鋼構造建築物の耐震設計法および地震後の継続使用・復旧対応に関する研究 その30

    魚住明彦, 伊山潤, 三井和也, 森光士郎, 五十嵐規矩夫, 佐野航, 木村征也, 常木康弘, 小 野潤一郎, 吉田和彦, 貞許美和

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1059–1060   2025.7

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  • 局部座屈およびき裂により耐力劣化が生じるH形断面梁の繰返し履歴下における性能評価

    森光士郎, 五十嵐規矩夫, 三井和也, 木村征也, 内田衞, 二階堂真人, 桑田涼平, 吉本隼

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1359–1360   2025.7

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  • 2軸圧縮応力およびせん断応力を受ける平行四辺形パネルの座屈耐力

    定慶一郎, 五十嵐規矩夫, 三井和也

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1307–1308   2025.7

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  • 冷間成形リップ溝形断面部材の偏心圧縮試験

    光廣日向子, 槇枝諒祐, 三井和也, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1313–1314   2025.7

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  • EFFECT OF MEMBER GEOMETRY AND BOUNDARY CONDITION OF PLATE END EDGES ON RELATIONSHIP BETWEEN ELASTIC BUCKLING STRENGTH AND ULTIMATE STRENGTH OF COLD-FORMED THIN-WALLED STEEL MEMBERS Reviewed

    Kazuya Mitsui, Kikuo Ikarashi, Hinako Mitsuhiro, Ryosuke Makieda, Tomoki Kobashi, Ryohei Kuwada

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 90 ( No. 833 )   843 - 854   2025.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Architectural Institute of Japan  

    In this study, which focuses on thin-walled members subjected to axial compressive forces, column tests and finite element analysis are conducted to elucidate the effects of boundary conditions at plate end edges and member geometry on the ultimate (i.e., post-buckling) strength of thin-walled members. It is found that the boundary conditions at the plate end edges do not influence the ultimate strength of the thin-walled members; however, the rate of increase from the elastic buckling strength to the ultimate strength varies depending on the member geometry.

    DOI: 10.3130/aijs.90.843

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  • 接着剤を用いた鋼構造接合部の一面せん断耐力

    花井勉, 小林博一, 五十嵐規矩夫, 三井和也, 秋本雅人, 小谷準, 紺野誠, 小川大輝

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1117–1118   2025.7

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  • 接着剤を用いた鋼構造接合部の接着強さに接着領域の形状が及ぼす影響

    小林博一, 花井勉, 五十嵐規矩夫, 三井和也, 秋本雅人, 小谷準, 紺野誠, 小川大輝

    日本建築学会大会学術講演梗概集   Vol. C-Ⅲ   1119–1120   2025.7

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  • Strength and Behavior of Elastic Critical Distortional Buckling for Cold‐Formed Channel Member Under Compression Reviewed International journal

    Kazuya Mitsui, Kikuo Ikarashi, Tomoki Kobashi, Ryohei Kuwada

    Japan Architectural Review   Vol. 8 ( Issue 1 )   e70024   2025.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/2475-8876.70024

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  • 接着剤を用いた鋼構造接合部の接着強さに接着領域の形状が及ぼす影響

    小林博一, 花井勉, 五十嵐規矩夫, 三井和也, 秋本雅人, 小谷準, 紺野誠, 小川大輝

    2025

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  • Cyclic Behaviors of L-shaped Beam-column Connection Oblique Plates Reviewed

    Keiichiro Sada, KIKUO IKARASHI, Kazuya Mitsui

    Proceedings of Constructional Steel   Vol. 32   309 - 317   2024.11

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  • Elastic Local Buckling of Plates with Circular Holes Subjected to Nonuniform Bending Reviewed

    Riku Watanabe, Kikuo Ikarashi, Kazuya Mitsui

    Proceedings of Constructional Steel   Vol. 32   253 - 261   2024.11

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  • PREDICTION METHODS OF MAXIMUM STRENGTH OF LOCAL BUCKLING H-SHAPED BEAMS CONNECTED BY FLUSH END PLATES Reviewed

    Hiroshi Matsubara, KIKUO IKARASHI

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 89 ( No. 825 )   1320 - 1329   2024.11

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    This paper presents prediction methods of maximum strength around strong axis of local buckling H-Shaped beams connected by flush end plates. This paper studies the neutral axis position of the beam section around the connection and consider that the neutral axis position moves towards the compression region due to out-of-plane plastic deformation of the flush end plate. The influence of the movement of the neutral axis position for maximum local buckling strength is estimated by the energy method and accuracy of the estimation is checked by the experiment of the full-scale specimen and the nonlinear FEM analysis.

    DOI: 10.3130/aijs.89.1320

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  • Single Shear Tests of Steel Structure Connections Utilizing Adhesives Reviewed

    Ray Hasegawa, KIKUO IKARASHI, Kazuya Mitsui, 花井勉, 小林博一, 秋元雅人, 紺野誠, 小川大輝

    Proceedings of Constructional Steel   Vol. 32   369 - 375   2024.11

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  • INFLUENCE OF CIRCULAR WEB OPENING CONFIGURATIONS ON ELASTIC BUCKLING BEHAVIOR OF I-SHAPED STEEL MEMBERS International journal

    Riku WATANABE, Kikuo IKARASHI, Kazuya MITSUI

    The 25th Japan-Korea-Taiwan Joint Seminar on Earthquake Engineering for Building Structures   Vol. 25   177 - 186   2024.10

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  • SINGLE-LAP SHEAR TESTS OF STEEL STRUCTURE CONNECTIONS UTILIZING ADHESIVES International journal

    Rei HASEGAWA, Kikuo IKARASHI, Kazuya MITSUI

    The 25th Japan-Korea-Taiwan Joint Seminar on Earthquake Engineering for Building Structures   Vol. 25   157 - 166   2024.10

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  • Effect of Amplitude of Cyclic Loading on the Collapse Modes of I-Shaped Beams with Local Buckling Reviewed International journal

    Koshiro Mori, Kikuo Ikarashi, Kazuya Mitsui

    Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas   257–267   2024.7

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    In Japan, a series of destructive earthquakes (magnitude 7.0) occurred in a short period, resulting in a considerable interest in the low-cycle fatigue resistance of beam-end welds of beam-to-column connections with full-penetration welding. In the existing literature, various fatigue damage evaluation methods have been proposed based on the experimental results of stiffened beams aimed at preventing local buckling at the beam ends. However, because local buckling is expected to occur at the beam-ends of steel-framed structures, this study focused on conducting cyclic loading tests on I-shaped steel beams, allowing local buckling to occur at the beam-ends. In this study, we proposed novel fatigue curves based on the experimental results obtained from these tests. The experimental variables were the cross-sectional shape and constant amplitudes. Several constant loading amplitudes were applied to the same cross-sectional shape to investigate the effects of the constant amplitude and cross-sectional shape on the collapse mode. Based on these cyclic tests, when local buckling occurred, three collapse modes could be classified. These collapse modes were observed to vary depending on factors, such as the amplitude of the loading history and width-to-thickness ratio of the cross section. Additionally, this study revealed that the specimens that allowed for local buckling had larger deformation capacities until fracture than those that prevented local buckling at the beam ends.

    DOI: 10.1007/978-3-031-62884-9_23

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  • Influence of Eccentricity on Elastic Critical Buckling Load and Behavior of Cold-Formed Steel Lipped Channel Columns Reviewed International journal

    Ryosuke Makieda, Kazuya Mitsui, Kikuo Ikarashi

    Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas   56–67   2024.7

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    Cold-formed steel sections are commonly used as construction members for various applications. These sections have slender, thin-walled open cross-sections, which make them highly susceptible to instability phenomena, including local, distortional, and global buckling (flexural or flexural-torsional buckling). Most of the existing literature assumes that cold-formed steel members experience either uniform compression or uniform bending and derives the elastic buckling loads corresponding to these specific buckling modes. However, in actual joints within steel-framed structures, cold-formed steel members experience nonuniform stresses owing to the simultaneous action of compression and bending caused by eccentricity. Current design codes incorporate simple design formulae that assume a linear summation based on the compression-to-bending stress ratio. However, these design formulae do not provide a rigorous evaluation of the buckling load. Therefore, we conducted stub column tests under eccentricity and performed analyses in this study using the finite element method. The results confirmed that the influence of the eccentricity led to a buckling mode that differed from that of the uniform stress state. Additionally, the ultimate load and the load-displacement relationship underwent significant changes owing to the influence of the eccentricity. Furthermore, we derived the elastic buckling load of each buckling mode changing with the amount of eccentricity using the energy method and clarified the influence of eccentricity on the buckling mode and the change in buckling load.

    DOI: 10.1007/978-3-031-62884-9_5

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  • STRENGTH OF BOLTED STEEL STRUCTURAL MEMBERS UNDER ECCENTRIC TENSION Reviewed

    Hideo Haikata, KIKUO IKARASHI, Kazuya Mitsui

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 89 ( No. 820 )   639 - 650   2024.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Architectural Institute of Japan  

    It is well known that the bearing capacity of bolted connections subjected to tensile forces is affected by eccentricity. However, the effect of the bending moment caused by the eccentricity on the bearing capacity has not been fully investigated. This study conducted a series of tensile tests and finite element analyses of brace members and examined the stress distribution in the cross-section. Then, a novel method of estimating the bearing capacity determined by the net section fracture in FEA was proposed. Furthermore, design equations for bolted connections that consider the effect of eccentricity in each cross-section were developed.

    DOI: 10.3130/aijs.89.639

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  • Elastic Critical Buckling Coefficients for Skew Plates of Steel Structures under Biaxial Normal Stress Reviewed International journal

    Kazuya Mitsui, Kikuo Ikarashi, Keiichiro Sada

    Buildings   Vol. 14 ( Issue 4 )   901 - 901   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:MDPI  

    In steel structures, skew thin steel plates serve as panel zones in structures spanning large spaces (e.g., warehouses and gymnasiums). Considerable research has been conducted on the shear buckling of panels due to seismic loads acting on a structure. Conversely, under snow or wind loads, the panel zone may experience compressive and tensile stresses simultaneously from two directions. Considering the economic preference for thin steel plates, evaluating the elastic critical local buckling stresses in the panel zone under biaxial normal stress may provide essential information to structural engineers. In this study, an elastic buckling analysis based on the energy method is performed to clarify the impact of panel geometry and boundary conditions on the elastic local buckling stresses of skew panel zones. As confirmed from the results, the local buckling stresses calculated using the energy method were consistent with those determined using finite element analysis. The findings indicate that a skew angle of up to 30° marginally affects the elastic buckling stress under uniaxial stress. Consequently, engineer-friendly design formulas were developed based on these findings. Comparisons with previous research demonstrated that the buckling loads reported were generally higher than those determined by finite element analysis. The study also established the correlation of the buckling stresses under biaxial stresses, which implied that the skew angle posed minimal influence on buckling stress for skew plates under biaxial stress. Additionally, a method for evaluating this correlation was presented. Engineers can utilize the provided design equations to more efficiently and accurately calculate buckling loads, facilitating a safer and more economical design of structures with skew plates.

    DOI: 10.3390/buildings14040901

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  • Elastic critical local buckling load and behavior of local buckling for cold-formed lipped channel steel member under compression Reviewed International journal

    Kazuya Mitsui, Kikuo Ikarashi

    Japan Architectural Review   Vol. 7 ( Issue 1 )   2024.2

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    The objective of this study was to analyze the elastic critical local buckling of cold-formed lipped channel sections using the energy method. A mechanical model and unique displacement functions simulating the local buckling behavior were proposed to consider the plate element interaction. Using the proposed mechanical mode, an analytical formula for local buckling that directly reflects the parameters of the channel member was proposed. Based on the proposed formula, the relationship between the cross-sectional geometry and local buckling behavior was investigated. In addition, a simplified design equation was proposed. The reliability and effectiveness of the proposed equations were presented by comparing with the results of eigenvalue analysis based on the finite element method.

    DOI: 10.1002/2475-8876.12432

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  • INVESTIGATION ON BOLTED CONNECTION STRENGTH OF BRACE MEMBERS UNDER TENSILE FORCES International journal

    Hideo Haikata, Kikuo Ikarashi, Kazuya Mitsui

    SEEBUS 2023   2023.12

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  • Effect of Loading Protocol on Deteriorating Behavior due to Local Buckling of Box-section Steel Members Reviewed

    Kazuya Mitsui, Itsuki Matsumoto, Kikuo Ikarashi

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 88 ( No. 813 )   1569–1580 - 1580   2023.11

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    The effects of cyclic loading protocols on the structural performance of rectangular hollow-section members, such as the ultimate resistance determined by local buckling and the degradation behavior, are clarified through structural tests and elasto-plastic numerical analyses based on the finite element method. The material constants of the Chaboche model and the subloading surface model were identified using cyclic coupon tests to simulate the structural tests by the finite element method, and the analysis of rectangular hollow-section members subjected to bending shear was performed. Finally, evaluation formulae for the structural performance are proposed based on parametric numerical analyses.

    DOI: 10.3130/aijs.88.1569

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  • Effect of Material Constitutive Model on Cyclic History Behavior of High-Strength Box-Section Members Reviewed

    Itsuki Matsumoto, Kazuya Mitsui, Kikuo Ikarashi

    Proceedings of Constructional Steel   Vol. 31   490 - 498   2023.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Steel Construction  

    In this study, the material parameters of the existing constitutive model were calibrated from the results of cyclic material coupon tests of high-strength steel. The loaddisplacement relationship of box-section members under non-uniform bending composed of the same steel was reproduced by the analysis based on the finite element method (FEM).The FEM analysis showed that the linear kinematic hardening model is not accurate enough to reproduce the historical properties of both material level and member behavior. The relationship between the numerical trend of the Chaboche model parameters and the reproducibility of the material cycic coupon test is also discussed, and the suitability of each calibration result in the member analysis is evaluated in terms of the strength transition and energy absorption.

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  • Prediction Method of Moment Rotation Relationship of Buckling H-shaped Beams under One Side Loading Reviewed

    Hiroshi Matsubara, Kikuo Ikarashi

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 88 ( No. 813 )   1557 - 1568   2023.11

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    This paper presents prediction methods of moment-rotation relationships around strong axis of buckling H-Shaped beams subjected to a moment at one end. This paper studies the behaviors of the beams in two cases of boundary condition. In the one case, both ends are not restraint to rotate laterally and to warp. In the other case, the only loading end is restraint to rotate laterally and to warp. In order to improve the accuracy of the methods over various cross sections and spans, this paper checks that the lateral deformation and twist angle can be predicted accurately.

    DOI: 10.3130/aijs.88.1557

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  • ELASTIC CRITICAL BUCKLING LOAD OF OBLIQUE PANELS SUBJECTED TO BIDIRECTIONAL COMPRESSIVE FORCES Reviewed

    keiichiro sada, Kazuya Mitsui, Kikuo Ikarashi

    Proceedings of Constructional Steel   Vol. 31   609 - 615   2023.11

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    The objective of this study is to analyze the buckling behavior of oblique panel elements under independent compressive loads, with simple and fixed supports along edges, using the energy method. The calculation process of the buckling resistance based on the energy method can be complex. Therefore; simple design formulae for the buckling coefficient were proposed. Furthermore, a correlation between biderectional compressive forces is invested for the buckling resistance. Since this correlation is affected by changes in buckling mode, attention must be required in the designing panels.

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  • EFFECT OF AMPLITUDE UNDER CYCLIC LOADINGS TO COLLAPSE BEHAVIORS OF I-SHAPED STEEL BEAMS Reviewed

    koshiro mori, Kazuya Mitsui, Kikuo Ikarashi

    Proceedings of Constructional Steel   Vol. 31   673 - 680   2023.11

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    The objective of this study is to analyze the buckling behavior of oblique panel elements under independent compressive loads, with simple and fixed supports along edges, using the energy method. The calculation process of the buckling resistance based on the energy method can be complex. Therefore; simple design formulae for the buckling coefficient were proposed. Furthermore, a correlation between biderectional compressive forces is invested for the buckling resistance. Since this correlation is affected by changes in buckling mode, attention must be required in the designing panels.

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  • Deterioration Behavior of Box Section Members Subjected to Cyclic Horizontal Loading of Various Protocols

    Itsuki Matsumoto, Kazuya Mitsui, KIKUO IKARASHI

    Vol. 16   2023.11

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  • BUCKLING BEHAVIOR AND ULTIMATE RESISTANCE OF COLD-FORMED LIPPED CHANNEL MEMBERS UNDER ECCENTRIC COMPRESSION Reviewed

    ryosuke makieda, Kazuya Mitsui, Kikuo Ikarashi

    Proceedings of Constructional Steel   Vol. 31   681 - 687   2023.11

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    Cold-formed steel members are susceptible to instability phenomena, including local, distortional, and global buckling. Most of the existing literature assumes that cold-formed steel members are subjected to uniform compression. However, in actual joints within steel-framed structures, cold-formed steel members experience non-uniform stresses due to eccentricity. Therefore, in this study, we conducted stub column tests under eccentricity and performed analyses using the finite element method. The results confirmed that the influence of eccentricity led to the occurrence of the buckling mode different from the uniform stress state and ultimate resistance changing with the amount of eccentricity.

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  • Strength of bolted steel structural members under eccentric tension Reviewed International journal

    Kazuma Nagasato, Kikuo Ikarashi, Kazuya Mitsui

    Japan Architectural Review   Vol. 6 ( Issue 1 )   2023.10

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    The effective cross-sectional area method for the outstanding leg is utilized as an ineffective area to evaluate the strength in the present Japanese design standard. Given that this evaluation method is fundamentally premised on experimental outcomes derived from relatively thick plates, it must be extended to brace members composed of thin plates. In this study, we conduct bolt joint experiments and numerical analyses on thin-plate angles and channel members, with the aim to elucidate the elements influencing the efficiency of the joint. We propose a unified bolt joint strength evaluation formula that also considers thin-plate members.

    DOI: 10.1002/2475-8876.12409

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  • Elastic critical local buckling stress in cold-formed lipped channel and hat sections under uniform compression Reviewed International journal

    Kazuya Mitsui, Kikuo Ikarashi, Tomoki Kobashi, Ryohei Kuwada

    Thin-Walled Structures   Vol. 191 ( No. 111064 )   111064 - 111064   2023.8

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    The classical design approach for the elastic critical local buckling load of the cold-formed open section (CFOS) neglects the plate element interaction at the cross-section, which compromises the benefits of CFOSs designed for high performance. To derive a novel formula for the local buckling coefficient, taking into account the plate element interaction at the cross-section, a series of displacement functions for expressing the buckling deformations of the web, flanges, and lips caused by local buckling in CFOSs is proposed in this paper. The effect of cross-sectional geometry on the buckling coefficient was investigated using the proposed formula derived from Timoshenko’s plate buckling theory. Further, simplified formulae were proposed for the buckling coefficient and half wavelength of the elastic critical local buckling for practical use. The reliabilities of the proposed formulae were verified by comparing the results obtained from the proposed formulae with the analysis results based on the finite element method and finite strip method.

    DOI: 10.1016/j.tws.2023.111064

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  • Design formula for the buckling coefficient of lip in the lipped-Channel cross section under axial compression

    Tomoki KOBASHI, Kazuya MITSUI, Ryohei KUWADA, Kikuo IKARASHI

    Vol. C-Ⅲ ( No. 22568 )   1135 - 1136   2023.7

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  • Effects of Vertical Stiffeners on Plastic Deformation Capacity of H-shaped Beams when Width-thickness Ratio of Web is Large. Part 4 : Analytical Study on the Beams with Large Web Opening

    KANAZAKI Shintaro, YASUNAGA Jumpei, UETO Ayaka, UEKI Takuya, KIMURA Seiya, HIRAI Kenichi, SANO Wataru, IKARASHI Kikuo

    Vol. C-Ⅲ ( No. 22403 )   805 - 806   2023.7

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  • Research on Performance of Self-drilling Screw Subjected to Bending Shear

    KUWADA Ryohei, KOBASHI Tomoki, IKARASHI Kikuo, MITSUI Kazuya, HAIKATA Hideo

    Vol. C-Ⅲ ( No. 22521 )   1041 - 1042   2023.7

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  • Shear Tests of Core of Steel Sandwich Panel

    FURUTA Yukito, KIKUO IKARASHI

    Vol. C-Ⅲ ( No. 22576 )   1151 - 1152   2023.7

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  • Effect of Material Constitutive Models and Their Constants on the Accuracy of Analysis of Deformation Behavior with Buckling of Box Section Members

    SADA Keiichiro, MATSUMOTO Itsuki, MITSUI Kazuya, IKARASHI Kikuo

    Vol. C-Ⅲ ( No. 22423 )   845 - 846   2023.7

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  • Elastic Buckling of Upper Flange Restraint I-Shaped Beam Subjected to End Moments and Uniformly Distributed Load

    Tomoki Nakano, KIKUO IKARASHI, Kazuya Mitsui

    Vol. C-Ⅲ ( No. 22374 )   747 - 748   2023.7

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  • Experimental study on drilling tapping screw shear connection of cold-formed steel section

    MITSUI Kazuya, IKARASHI Kikuo, HAIKATA Hideo, KUWADA Ryohei, KOBASHI Tomoki

    Vol. C-Ⅲ ( No. 22522 )   1043 - 1044   2023.7

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  • Effects of Vertical Stiffeners on Plastic Deformation Capacity of Hshaped Beams when Width-thickness Ratio of Web is Large. Part 3 : Experimental Study on the Beams with Large Web Opening

    YASUNAGA Jumpei, KANAZAKI Shintaro, UETO Ayaka, UEKI Takuya, KIMURA Seiya, HIRAI Kenichi, SANO Wataru, IKARASHI Kikuo

    Vol. C-Ⅲ ( No. 22402 )   803 - 804   2023.7

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  • The Buckling Behavior and Ultimate Resistance of Cold-formed Lipped Steel Channel Members under Eccentric Compression

    Ryosuke Makieda, Kazuya Mitsui, KIKUO IKARASHI

    Vol. C-Ⅲ ( No. 22571 )   1141 - 1142   2023.7

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  • Calibration of Material Constitutive Models Using Cyclic Material Coupon Test Results for High-Strength Steel

    MATSUMOTO Itsuki, MITSUI Kazuya, IKARASHI Kikuo

    Vol. C-Ⅲ ( No. 22422 )   843 - 844   2023.7

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  • Plastic Deformation Capacity of Upper Flange Restraint I-Shaped Beam Subjected to End Moments and Uniformly Distributed Load

    KIKUO IKARASHI, Tomoki Nakano, Kazuya Mitsui

    Vol. C-Ⅲ ( No. 22375 )   749 - 750   2023.7

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  • Investigation on Bolted Connection Strength Consist of Steel Angle using Finite Element Method

    HAIKATA Hideo, IKARASHI Kikuo, MITSUI Kazuya

    Vol. C-Ⅲ ( No. 22567 )   1133 - 1134   2023.7

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  • ELASTIC LOCAL BUCKLING STRENGTH OF I-SHAPED BEAM WEB PLATES SUBJECTED TO END MOMENTS AND UNIFORMLY DISTRIBUTED LOAD Reviewed

    Tomoki Nakano, Kazuya Mitsui, KIKUO IKARASHI

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 88 ( No. 806 )   687 - 698   2023.4

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    DOI: 10.3130/aijs.88.687

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  • Required number of self-drilling screws for built-up column comprising cold-formed lipped channel sections to ensure flexural buckling as a single unit member Reviewed International journal

    Kazuya Mitsui, Atsushi Sato, Kikuo Ikarashi

    Japan Architectural Review   Vol. 6 ( Issue 1 )   2023.4

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    This study analyzed the flexural buckling behavior of light-gauge built-up compression members joined by self-drilling screws by using the energy method. A nonconventional mechanical model that simulates the flexural buckling behavior of a built-up member was proposed, and the contradictions of Bleich’s model were described. A simple design formula that directly reflects the parameters of built-up members was derived based on the proposed model. Furthermore, to ensure flexural buckling as a single unit member, the required stiffening stiffness and number of self-drilling screws were proposed.

    DOI: 10.1002/2475-8876.12354

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  • INFLUENCE OF UPPER FLANGE CONTINUIOUS RESTRAINT CONDITION ON PLASTIC DEFORMATION CAPACITY OF I-SHAPED BEAMS Reviewed

    IKARASHI, Kazuya MITSUI, Hiroto KAGESAWA, Seiya KIMURA, Mamoru UCHIDA, Kenta HIRAI, Takeshi TAKADA, Fuyuki ITO

    Journal of Structural and Construction Engineering   Vol. 88 ( No. 805 )   519 - 530   2023.3

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    It is known that the plastic deformation capacity of I-shaped beams is significantly improved by restraining the upper flange. However, a systematic
    buckling design method that properly considers the stiffening effect of the slab has not been established. This study clarifies the effect of the
    continuous restraint condition of the upper flange on the plastic deformation capacity of I-shaped beams and proposes a method for evaluating plastic
    deformation performance. In addition, the stiffness and buckling strength of the upper flange restraints for the required plastic deformation capacity
    of the beams are shown from previous experiments.

    DOI: 10.3130/aijs.88.519

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  • Effect of Assembly Types on Bolted Connection Strength Consist of Built-up Angle Members under Monotonic Tensile Force Reviewed International journal

    Hideo Haikata, Kikuo Ikarashi, Kazuya Mitsui

    2022.12

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  • Effect of Loading Protocol on Hysteretic Response and Stiffness Deterioration of Steel Hollow Structural Section Columns Reviewed International journal

    Itsuki Matsumoto, Kazuya Mitsui, Kikuo Ikarashi

    2022.12

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  • Bolted Connection Strength Consist of Built-up Angle Members Subjected to Tensile Foce Reviewed

    Hideo Haikata, Kikuo Ikarashi, Kazuya Mitsui

    Proceedings of Constructional Steel   Vol. 30   489 - 496   2022.11

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  • Elastic Buckling of Parallelogram Connection Panels Subjected to Shear Forces Reviewed

    Tomomasa Aratani, Kazuya Mitsui, Kikuo Ikarashi

    Proceedings of Constructional Steel   Vol. 30   482 - 488   2022.11

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  • Elastic Shear Buckling Coefficients for Oblique Plates Reviewed International journal

    Kazuya Mitsui, Kikuo Ikarashi

    Mathematical Problems in Engineering   Vol. 2022   2022.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Hindawi  

    DOI: 10.1155/2022/9532380

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  • Elastic Local Buckling Strength of Wide Flange Beams Web Subjected to End Moment and Distributed Load Reviewed International journal

    Tomoki Nakano, Kikuo Ikarashi, Kazuya Mitsui

    The 2022 edition of the International Colloquium on Stability and Ductility of Steel Structures (SDSS 2022)   958 - 964   2022.9

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  • Strength and Behavior of Elastic Distortional Buckling for Cold-formed Channel Member under Compression Reviewed

    Kazuya Mitsui, KIKUO IKARASHI, Tomoki Kobashi, 桑田涼平

    J. Struct. Constr. Eng., AIJ   Vol. 87 ( No. 791 )   139 - 148   2022.1

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    DOI: 10.3130/aijs.87.139

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  • BUCKLING STREGNTH AND BEHAVIOR OF ELASTIC LOCAL BUCKLING FOR COLD-FORMED CHANNEL MEMBER UNDER COMPRESSION Reviewed

    Kazuya Mitsui, KIKUO IKARASHI

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 86 ( No. 790 )   1685 - 1692   2021.12

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    DOI: 10.3130/aijs.86.1685

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  • A Study on Distortional Buckling of Light Gauge Member Reviewed

    Kazuya Mitsui, KIKUO IKARASHI, Tomoki Kobashi, Ryohei Kuwada

    Proceedings of Constructional Steel   Vol. 29   308 - 317   2021.11

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  • Elastic Local Buckling Properties of H-shaped Beams Subjected to End Moments and Uniformly Distributed Load Reviewed

    Tomoki Nakano, KIKUO IKARASHI, Kazuya Mitsui

    Proceedings of Constructional Steel   Vol. 29   384 - 392   2021.11

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  • Plastic Deformation Capacity of Stiffened Vertical Haunch I-shaped Beam Reviewed

    Takuto Fukuda, KIKUO IKARASHI, Kazuya Mitsui

    Proceedings of Constructional Steel   Vol. 29   334 - 340   2021.11

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  • Distortional Buckling of Cold-Formed Channel Member under Compression Reviewed International journal

    Kazuya Mitsui, Kikuo Ikarashi, Tomoki Kobashi, Ryohei Kuwada

    Proceedings of the 22nd Taiwan-Japan-Korea Joint Seminar on Earthquake Engineering for Building Structures   126 - 135   2021.10

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  • Theoretical Analysis of Elastic Local Buckling for H-Shaped Beams Subjected to End Moments and Uniformly Distributed Load Reviewed International journal

    Tomoki Nakano, Kikuo Ikarashi, Kazuya Mitsui

    Proceedings of the 22nd Taiwan-Japan-Korea Joint Seminar on Earthquake Engineering for Building Structures   145 - 154   2021.10

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  • Buckling Strength Evaluation Method of Plate on Elastic Foundation and Its Application to Sandwich Panels Reviewed International journal

    Hinako Mitsuhiro, Kikuo Ikarashi, Kazuya Mitsui

    Proceedings of the 22nd Taiwan-Japan-Korea Joint Seminar on Earthquake Engineering for Building Structures   33 - 40   2021.10

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  • Buckling Strength and Buckling Behavior of I-Shaped Beams with Continuous Lateral Restraints on Upper Flange Reviewed International journal

    Hiroto Kagesawa, Kikuo Ikarashi, Kazuya Mitsui

    Proceedings of the 22nd Taiwan-Japan-Korea Joint Seminar on Earthquake Engineering for Building Structures   26 - 32   2021.10

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  • DESIGN METHOD FOR STEEL PLATE SHEAR WALL RESTRAINED BY ONE-SIDED STIFFENING TYPE Reviewed

    Jumpei Yasunaga, Takuya Ueki, Yukio MURAKAMI, Junichiro ONO, Seiya Kimura, Tatsuya Ohyama, KIKUO IKARASHI

    Journal of Structural and Construction Engineering   Vol. 86 ( No. 786 )   1213 - 1223   2021.8

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    DOI: 10.3130/aijs.86.1213

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  • 引張力を受ける偏心接合された薄板鋼構造部材のボルト接合部耐力

    永里和真, 五十嵐規矩夫, 三井和也, 川端洋介

    日本建築学会大会学術講演梗概集   Vol. 86 ( No. 789 )   795 - 796   2021.7

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    DOI: 10.3130/aijs.86.1570

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  • Lateral Buckling Strength and Deformation Capacity of H-Shaped Tapered Beams with Restraint

    An Tongheng, Ikarashi Kikuo, Mitsui Kazuya

    日本建築学会大会学術講演梗概集   881 - 882   2021.7

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  • 圧縮力を受けるリップ溝形断面部材の座屈性状に及ぼす幾何学的初期不整の影響

    渡辺茜, 五十嵐規矩夫, 三井和也, 小橋知季

    日本建築学会大会学術講演梗概集   797 - 798   2021.7

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  • 上フランジを連続完全拘束されたH形断面梁の塑性変形性能評価

    影澤泰人, 五十嵐規矩夫, 三井和也, 木村征也, 内田衛, 平井健太, 高田武之, 伊藤冬樹

    日本建築学会大会学術講演梗概集   889 - 890   2021.7

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  • 軸力と曲げせん断力を受ける閉断面部材の幅厚比制限値

    五十嵐規矩夫, 八馬秀, 三井和也

    日本建築学会大会学術講演梗概集   821 - 822   2021.7

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  • 圧縮力が作用する薄板軽量形鋼のゆがみ座屈耐力に関する研究

    三井和也, 五十嵐規矩夫, 小橋知季, 桑田涼平

    日本建築学会大会学術講演梗概集   799 - 800   2021.7

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  • 薄板軽量形溝形断面部材の許容応力度設計法に関する一検討

    光廣日向子, 五十嵐規矩夫, 三井和也, 小橋知季, 桑田涼平

    日本建築学会大会学術講演梗概集   1077 - 1078   2021.7

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  • 軸力と曲げせん断力を受ける円形中空断面部材の弾性局部座屈耐力と塑性変形性能

    八馬秀, 五十嵐規矩夫, 三井和也

    日本建築学会大会学術講演梗概集   819 - 820   2021.7

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  • 曲げせん断力を受けるスチフナ付きH形断面鉛直ハンチ梁の塑性変形能力

    福田拓人, 五十嵐規矩夫, 三井和也

    日本建築学会大会学術講演梗概集   907 - 908   2021.7

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  • 端モーメントおよび等分布荷重を受けるH形断面梁ウェブの弾性局部座屈性状

    中野友貴, 五十嵐規矩夫, 三井和也

    日本建築学会大会学術講演梗概集   867 - 868   2021.7

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  • REQUIRED NUMBER OF SELF-DRILLING SCREWS FOR LIGHT GAUGE BUILT-UP COMPRESSION MEMBERS TO ENSURE FLEXURAL BUCKLING AS A UNIT MEMBER Reviewed

    Kazuya Mitsui, 佐藤篤司, KIKUO IKARASHI

    Journal of Structural and Construction Engineering   Vol. 86 ( No. 784 )   979 - 990   2021.6

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    This study's main purpose is to analyze the flexural buckling behavior of light gauge built-up compression members jointed by self-drilling screws based on the energy method. A non-conventional mechanical model that simulates the flexural buckling behavior of the built-up member was proposed, and the contradictions of Bleich's model was described. A simple design formula that directly reflects the built-up member's parameters was derived based on the proposed model. Furthermore, the required stiffening rigidity and the required number of self-drilling screws are proposed to ensure flexural buckling as a unit member.

    DOI: 10.3130/aijs.86.979

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  • EVALUATION OF PLASTIC DEFORMATION CAPACITY OF EVALUATION OF PLASTIC DEFORMATION CAPACITY OF EVALUATION OF PLASTIC DEFORMATION CAPACITY OF OCTAGONAL HOLLOW CROSS-SECTION MEMBER OCTAGONAL HOLLOW CROSS-SECTION MEMBER Reviewed

    KIKUO IKARASHI, Shu Hachiuma

    J. Struct. Constr. Eng., AIJ   Vol. 86 ( No. 780 )   321 - 330   2021.2

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  • EFFECT OF GEOMETRICAL IMPERFECTION ON ANALYTICAL BUCKLING STRENGTH OF COLD-FORMED LIPPED CHANNEL STEEL MEMBER UNDER COMPRESSION Reviewed

    Kazuya Mitsui, Akane Watanabe, Tomoki Kobashi, KIKUO IKARASHI

    Vol. 86 ( No. 779 )   157 - 167   2021.1

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    DOI: 10.3130/aijs.86.157

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  • BUCKLING BEHAVIOR OF H-SHAPED BEAM WITH CONTINUOUS RESTRAINT INSTALLED TRANSVERSE STIFFENERS AND METHOD FOR DECIDING STIFFENING POSITION Reviewed

    Naoki Igawa, KIKUO IKARASHI, Kazuya Mitsui

    Journal of Structural and Construction Engineering   Vol. 85 ( No. 777 )   1491 - 1500   2020.11

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    DOI: 10.3130/AIJS.85.1491

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  • APPLICATION OF BUCKLING STRENGTH EVALUATION METHOD OF PLATE ON ELASTIC FOUNDATION TO SANDWICH PANEL Reviewed

    Hinako Mitsuhiro, KIKUO IKARASHI, Kazuya Mitsui

    Proceedings of Constructional Steel   Vol. 28   895 - 901   2020.11

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  • EFFECT OF RESTRAINT FOR LATERAL TORSIONAL BUCKLING ON BUCKLING BEHAVIOR OF I-SHAPED BEAMS WITH CONTINUOUS LATERAL RESTRAINTS ON UPPER FLANGE Reviewed

    Hiroto Kagesawa, KIKUO IKARASHI, Kazuya Mitsui, Mamoru Uchida, Fuyuki Ito

    Proceedings of Constructional Steel   Vol. 28   786 - 793   2020.11

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  • ウェブ幅厚比の大きいH形断面梁における縦スチフナ補剛が塑性変形性能に及ぼす影響 その1:載荷実験による検討

    田村 淳一, 安永隼平, 植戸 あや香, 植木卓也, 村上行夫, 小野潤一郎, 木村征也, 安藤 顕祐, 五十嵐規矩夫, 大山翔也

    日本建築学会大会学術講演梗概集   913 - 914   2020.9

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  • H-shaped beam Vertical haunch Shear bending Local buckling Elastic-plastic behavior Finite element analysis

    Wataru Ishida, KIKUO IKARASHI, Kazuya Mitsui

    941 - 942   2020.9

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  • ウェブ幅厚比の大きいH形断面梁における縦スチフナ補剛が塑性変形性能に及ぼす影響 その2:FEM解析による検討

    金崎 信太郎, 安永隼平, 植戸 あや香, 植木卓也, 村上行夫, 小野潤一郎, 木村征也, 安藤 顕祐, 五十嵐規矩夫, 大山翔也

    日本建築学会大会学術講演梗概集   915 - 916   2020.9

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  • H-shaped Beam Continuous Restraint Rotational Restraint Lateral Buckling Local Buckling Bracing Stiffness

    Hiroto Kagesawa, KIKUO IKARASHI, Kazuya Mitsui, Seiya Kimura, 内田衞, 平井健太, 髙田武之, 伊藤冬樹

    943 - 944   2020.9

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  • Elastic Local Buckling Strength and Plastic Deformation Capacity of Cylindrical Hollow Cross-Section Member

    Shu Hachiuma, KIKUO IKARASHI, Kazuya Mitsui

    979 - 980   2020.9

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  • Buckling Behavior of Rectangular Plates on Elastic Foundation under Axial Force with Stress Gradient and its Application

    Hinako Mitsuhiro, KIKUO IKARASHI, Kazuya Mitsui

    1007 - 1008   2020.9

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  • Experimental Study on Buckling Behavior of Cold Formed Lipped Channel Steel Members under Compression

    Akane Watanabe, Kazuya Mitsui, KIKUO IKARASHI, Tomoki Kobashi

    879 - 880   2020.9

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  • 有限要素法による山形鋼ボルト接合部耐力の検討

    永里和真, 五十嵐規矩夫, 三井和也, 川端洋介

    日本建築学会大会学術講演梗概集(関東)   687 - 688   2020.9

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  • Lateral Buckling Strength of H-Shaped Tapered Beam under Shear Bending

    Tongheng An, KIKUO IKARASHI, Kazuya Mitsui

    日本建築学会大会学術講演梗概集(関東)   927 - 928   2020.9

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  • Vertical Direct Stress Acting on the Web of Vertical Haunch H-Shaped Beam Under Shear Bending

    KIKUO IKARASHI, Wataru Ishida, Kazuya Mitsui

    939 - 940   2020.9

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  • H-shaped Beam Coutinuous Restraint Transverse Stiffener Energy Method Lateral Buckling Index of sectional proportion

    Naoki Igawa, KIKUO IKARASHI, Kazuya Mitsui

    945 - 946   2020.9

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  • Influence of Geometric Imperfection on Buckling Behavior of Cold Formed Lipped Channel Steel Members under Compression

    Kazuya Mitsui, Akane Watanabe, KIKUO IKARASHI, Tomoki Kobashi

    881 - 882   2020.9

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  • EVALUATION METHOD OF ULITMATE STRENGTH FOR L-SHAPEE BEAM-TO-COLUMN JOINT PANELS COMPOSED WITH I-SHAPED MEMBERS Reviewed

    KIKUO IKARASHI, Yuuichi Utsuki, Kazuya Mitsui, Yuta Makino, Kaoru Yamada

    Journal of Structural and Construction Engineering (Transactions of AIJ)   85 ( 774 )   1079 - 1089   2020.8

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    DOI: 10.3130/aijs.85.1079

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  • Elastic Web Buckling Stress and Ultimate Strength of H-Section Beams Dominated by Web Buckling Reviewed International journal

    Jiaxing Ma, NA, Yinhui Wang, Kikuo Ikarashi

    Mathematical Problems in Engineering   Vol. 2020   2020.8

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  • BUCKLING BEHAVIOR OF WEB STIFFENED BY LONGITUDINAL STIFFENERS AND DESIGN METHOD FOR LONGITUDINAL STIFFENERS Reviewed

    KIKUO IKARASHI, Naoki Igawa, Yoshihiro Yanagishita, Kazuya Mitsui

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 85 ( No. 773 )   957 - 967   2020.7

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    DOI: 10.3130/aijs.85.957

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  • Effect of surrounding frame members on the buckling behavior of steel shear walls restrained by stiffeners Reviewed International journal

    Kikuo Ikarashi, Hayato Shimomura, Jumpei Yasunaga, Takuya Ueki, Junichiro Ono, Tatsuya Ohyama

    Japan Architectural Review   Vol. 3 ( Issue 4 )   481 - 495   2020.6

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    DOI: 10.1002/2475-8876.12162

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  • ELASTIC SHEAR BUCKLING STRENGTH OF L-SHAPED BEAM-TO-COLUMN JOINT PANELS COMPOSED WITH I-SHAPED MEMBERS Reviewed

    KIKUO IKARASHI, Yuuichi Utsuki, Kazuya Mitsui

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 85 ( No. 771 )   759 - 769   2020.5

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    DOI: 10.3130/aijs.85.759

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  • スチフナ補剛された鋼板耐震壁の座屈性状に周辺部材が及ぼす影響 Reviewed

    五十嵐規矩夫, 下村隼人, 安永隼平, 植木卓也, 小野 潤一郎, 大山翔也

    日本建築学会構造系論文集   Vol. 85 ( No. 767 )   141 - 150   2020.1

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  • Buckling Behavior of Built-up Cold-Formed Steel Members from Lipped C-Sections Reviewed

    Akane Watanabe, KIKUO IKARASHI, Daimu Takahashi

    Proceedings of Constructional Steel   Vol. 27   511 - 517   2019.11

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  • PREDICTION METHODS OF POST LATERAL-BUCKLING MOMENT-ROTATION RELATIONSHIPS OF H-SHAPED BEAMS SUBJECTED TO MOMENT AT ONE END Reviewed International journal

    H. Matsubara, K. Ikarashi

    2019.11

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  • Influence Factors on Effective Area of Bolted Steel Angles under Tension Reviewed

    Kazuma Nagasato, KIKUO IKARASHI, 岡田忠義, 川端洋介

    Proceedings of Constructional Steel   Vol. 27   194 - 1199   2019.11

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  • Local Buckling Strength of Vertical Haunch H-Shaped Beam Under Shear Bending Reviewed

    Wataru Ishida, KIKUO IKARASHI

    Proceedings of Constructional Steel   Vol. 27   129 - 134   2019.11

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  • Elastic Lateral Buckling Strength of H-Shaped Beams Subjected to End Moments and Uniformly Distributed Load Reviewed

    Daiki Shinohara, KIKUO IKARASHI

    Proceedings of Constructional Steel   Vol. 27   141 - 146   2019.11

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  • Evaluation of Plastic Deformation Capacity of Octagonal Hollow Cross-Section Member Reviewed

    Shu Hachiuma, Naohiro Wada, KIKUO IKARASHI, 岡田忠義

    Proceedings of Constructional Steel   Vol. 27   147 - 153   2019.11

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  • Local Buckling Strength of Vertical Haunch H-Shaped Beam Under Shear Bending Reviewed International journal

    Wataru Ishida, K. Ikarashi

    Journal of Structural and Construction Engineering   85 ( 778 )   1655 - 1665   2019.9

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    DOI: 10.3130/AIJS.85.1655

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  • 横座屈を生ずる上フランジ連続拘束H形断面梁の中間スチフナ補剛に関する基礎的検討

    井川直大, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1043 - 1044   2019.9

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  • 境界条件を考慮した H 形断面梁の横座屈後挙動の予測方法 その1 最大耐力前後の横座屈挙動と横曲げ応力

    山本 篤志, 松原宏志, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1087 - 1088   2019.9

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  • 曲げせん断力を受ける鉛直ハンチ H 形断面梁の弾性局部座屈耐力

    石田渉, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1027 - 1028   2019.9

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  • Effect of Stiffener Position on Buckling Behavior of H-Shaped Steel Beam with Upper Flange Restraint Reviewed International journal

    N. Igawa, K. Ikarashi

    2019.9

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  • ELASTIC BUCKLING STRENGTH OF H-SHAPED BEAMS SUBJECTED TO END MOMENT AND UNIFORMLY DISTRIBUTED LOAD Reviewed International journal

    Daiki Shinohara, K. Ikarashi

    2019.9

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  • 面内曲げを受ける突出フランジ板要素の座屈耐力評価

    屋比久竜史, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1023 - 1024   2019.9

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  • 端モーメントおよび等分布荷重を受ける H 形断面梁の弾性横座屈耐力

    篠原大貴, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1037 - 1038   2019.9

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  • 純圧縮または曲げを受ける八角形中空断面部材の弾性座屈耐力算定

    和田直大, 五十嵐規矩夫, 岡田 忠義, 川端洋介, 小橋知季

    日本建築学会大会学術講演梗概集   1125 - 1126   2019.9

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  • 八角形中空断面部材の塑性変形性能評価

    八馬秀, 和田直大, 五十嵐規矩夫, 岡田 忠義, 川端洋介

    日本建築学会大会学術講演梗概集   1127 - 1128   2019.9

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  • Elastic buckling strength of lipped channel section beam restrained on upper flange subjected to bending Reviewed International journal

    Hiroto Masuda, K. Ikarashi

    2019.9

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  • 境界条件を考慮した H 形断面梁の横座屈後挙動の予測方法 その2 捩じれ回転角と横変位の予測方法

    松原宏志, 山本 篤志, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1089 - 1090   2019.9

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  • Distortional Buckling Strength of H-Shaped Tapered Beam with Restraint

    Tongheng An, KIKUO IKARASHI

    日本建築学会大会学術講演梗概集   1039 - 1040   2019.9

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  • 周辺縦枠部材がスチフナ補剛された鋼板耐震壁の弾塑性挙動に及ぼす影響

    五十嵐規矩夫, 下村隼人, 安永隼平, 小野潤一郎, 大山翔也

    日本建築学会大会学術講演梗概集   1285 - 1286   2019.9

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  • 表裏交差形式でスチフナ補剛された鋼板耐震壁の弾性座屈耐力算定方法

    下村隼人, 五十嵐規矩夫, 安永隼平, 小野潤一郎, 大山翔也

    日本建築学会大会学術講演梗概集   1283 - 1284   2019.9

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  • 等曲げを受ける薄板軽量リップ溝形断面梁の弾性座屈応力度に与える上フランジ拘束度合いの影響

    増田宏斗, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1041 - 1042   2019.9

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  • 曲げせん断力を受けるウェブ幅厚比の大きなH形断面梁の弾性座屈後挙動および最大耐力算定法

    中嶋洋介, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1025 - 1026   2019.9

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  • 引張力を受ける山形鋼ボルト接合部の有効断面積に及ぼす影響因子

    永里和真, 五十嵐規矩夫, 岡田忠義, 川端洋介

    日本建築学会大会学術講演梗概集   1013 - 1014   2019.9

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  • 逆対称曲げを受ける薄板軽量リップ溝形鋼組立梁の座屈性状

    渡辺茜, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集   1035 - 1036   2019.9

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  • Elastic local buckling strength and maximum strength of rectangular section members which were loaded compression and bending

    Tomoki Kobashi, Kikuo Ikarashi, Nobutaka Shimizu

    Journal of Structural and Construction Engineering   84 ( 755 )   97 - 107   2019.1

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    DOI: 10.3130/aijs.84.97

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  • 曲げと圧縮が作用する薄肉長方形断面部材の弾性局部座屈耐力および最大耐力 Reviewed

    小橋知季, 五十嵐規矩夫, 清水信孝

    日本建築学会構造系論文集   Vol. 84 ( No. 755 )   97 - 107   2019.1

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  • Effect of Boundary Condition on Buckling Behavior of Thin-Walled Lipped Channel Section Beams Reviewed

    Hiroto MASUDA, Kikuo IKARASHI, Daiki KUBOTA

    Proceedings of Constructional Steel   Vol. 26   89 - 96   2018.11

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  • Elastic Buckling Behavior and Evaluation of Plastic Deformation Capacity of Octagonal Hollow Reviewed

    Naohiro WADA, Kikuo IKARASHI, Tadayoshi OKADA

    Proceedings of Constructional Steel   Vol. 26   730 - 735   2018.11

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  • An Effective Stiffener Position on H-Shaped Beams with Restrained Upper Flange Reviewed

    Naoki Igawa, KIKUO IKARASHI

    Proceedings of Constructional Steel   Vol. 26   69 - 74   2018.11

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  • Post buckling Strength of H-shaped Steel Beams with Large Web Depth-Thickness Ratio under Bending-Shear Reviewed

    Yosuke Nakajima, KIKUO IKARASHI

    Proceedings of Constructional Steel   Vol. 26   51 - 56   2018.11

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  • Development of Design Equations for The Local Buckling Strength on Octagonal Tubular Section Members Reviewed International journal

    Tomoki Kobashi, Kikuo Ikarashi, unknown unknown

    2018.10

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  • 周辺架構部材の面外剛性が鋼板耐震壁の座屈耐力に与える影響

    下村 隼人, 五十嵐 規矩夫, 安永 隼平

    日本建築学会大会学術講演梗概集   759 - 760   2018.9

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  • 上フランジを完全拘束されたH形断面梁の座屈性状に及ぼすスチフナ補剛位置の影響

    井川 直大, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1139 - 1140   2018.9

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  • 境界条件を考慮したH形断面梁の横座屈後の荷重変形関係の予測方法 その1 横座屈後の挙動と抵抗モデル

    松原 宏志, 大島 千鶴, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1095 - 1096   2018.9

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  • 引張力を受ける軽山形鋼ボルト接合部の継手効率

    戸塚 真里奈, 五十嵐 規矩夫, 岡田 忠義

    日本建築学会大会学術講演梗概集   1069 - 1070   2018.9

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  • 等曲げが作用する長方形断面部材の弾性局部座屈耐力

    小橋 知季, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1159 - 1160   2018.9

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  • 熱応力を受ける鋼板サンドイッチパネルの不安定挙動に関する基礎的研究

    山中 萌, 五十嵐 規矩夫, 小谷野 祐希

    日本建築学会大会学術講演梗概集   87 - 88   2018.9

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  • 曲げせん断力及び軸力を受ける八角形断面部材の最大耐力と塑性変形能力

    和田 直大, 五十嵐 規矩夫, 岡田 忠義

    日本建築学会大会学術講演梗概集   1001 - 1002   2018.9

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  • 薄板軽量リップ溝形鋼組立圧縮材の局部座屈性状に与える端部境界条件の影響

    高橋 大夢, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1075 - 1076   2018.9

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  • 面内曲げを受ける突出フランジ板要素の座屈性状と幅厚比の関係

    屋比久 竜史, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1079 - 1080   2018.9

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  • 上フランジを拘束されたリップ溝形断面梁の曲げせん断力作用下における弾性座屈性状

    増田 宏斗, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1107 - 1108   2018.9

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  • せん断力が作用する過大孔を有する高力ボルト摩擦接合部の力学性状

    五十嵐 規矩夫, 下村 隼人, 安永 隼平, 大山 翔也

    日本建築学会大会学術講演梗概集   939 - 940   2018.9

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  • 境界条件を考慮したH形断面梁の横座屈後の荷重変形関係の予測方法 その2 抵抗モデルの検証

    大島 千鶴, 松原 宏志, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1097 - 1098   2018.9

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  • 曲げせん断力を受けるウェブ幅厚比の大きなH形断面梁の座屈後耐力

    中嶋 洋介, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1083 - 1084   2018.9

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  • 曲げせん断力を受ける梁端部水平ハンチ付きH形断面梁の弾性局部座屈性状

    小高 弘慎, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1143 - 1144   2018.9

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  • 上フランジ拘束条件がH形断面梁の横座屈挙動に及ぼす影響

    佐野 達彦, 五十嵐 規矩夫

    日本建築学会大会学術講演梗概集   1113 - 1114   2018.9

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  • Study on elastic shear buckling of trapezoidal corrugated steel web

    Tao Wang, Kikuo Ikarashi

    Journal of Structural and Construction Engineering   83 ( 750 )   1193 - 1203   2018.8

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    DOI: 10.3130/aijs.83.1193

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  • 面内せん断力を受ける波形鋼板の弾性座屈応力度評価法 Reviewed

    王韜, 五十嵐規矩夫

    日本建築学会構造系論文集   Vol. 83 ( No. 750 )   1193 - 1203   2018.8

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  • Elastic local buckling strength and maximum strength of cold formed steel members with different plate width on adjacent plate elements

    Totnoki Kobashi, Kikuo Ikarashi, Nobutaka Shimizu

    Journal of Structural and Construction Engineering   83 ( 749 )   1051 - 1061   2018.7

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    DOI: 10.3130/aijs.83.1051

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  • H 形断面梁の横座屈性状に及ぼす上フランジ拘束条件の影響 Reviewed

    五十嵐規矩夫, 佐野達彦

    日本建築学会構造系論文集   Vol. 83 ( No. 749 )   1063 - 1073   2018.7

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  • 隣り合う板要素の幅が異なる薄板軽量形鋼の弾性局部座屈耐力および最大耐力 Reviewed

    小橋知季, 五十嵐規矩夫, 清水信孝

    日本建築学会構造系論文集   Vol. 83 ( No. 749 )   1051 - 1061   2018.7

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  • ELASTIC BUCKLING STRENGTH OF STEEL PLATES RESTRAINED BY CROSS BRACING Reviewed International journal

    Hayato Shimomura, Kikuo Ikarashi

    2018.7

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  • STABILITY OF FLANGE PLATE ELEMENTS SUBJECTED TO IN-PLANE BENDING Reviewed International journal

    Tatsufumi Yabiku, Kikuo Ikarashi

    2018.7

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  • STRENGTH OF H-SHAPED BEAMS WITH LARGE WEB DEPTH–THICKNESS RATIO UNDER BENDING–SHEAR Reviewed International journal

    Yosuke Nakajima, Kikuo Ikarashi

    2018.7

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  • EFFECT OF BEAM-END-CONDITIONS ON LOCAL BUCKLING BEHAVIOR OF H-SHAPED CROSS-SECTION BEAMS SUBJECTED TO BENDING-SHEAR Reviewed International journal

    Toru Inaba, Kosuke Sato, Kikuo Ikarashi

    2018.7

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  • EVALUATION OF LOCAL BUCKLING STRENGTH ON OCTAGONAL SECTION MEMBERS Reviewed International journal

    Tomoki Kobashi, Kikuo Ikarashi, unknown unknown

    2018.7

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  • 上フランジを連続拘束された H 形断面梁の崩壊形式と塑性変形性能 Reviewed

    五十嵐規矩夫, 大西佑樹, 佐野達彦

    日本建築学会構造系論文集   Vol. 83 ( No. 745 )   491 - 501   2018.3

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  • 表裏交差形式でスチフナ補剛された鋼板耐震壁の簡易設計法 Reviewed

    安永隼平, 植木卓也, 村上行夫, 小野潤一郎, 木村征也, 大山翔也, 五十嵐規矩夫

    日本建築学会構造系論文集   Vol. 83 ( No. 743 )   191 - 199   2018.1

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  • Failures and prediction methods of lateral buckling strength of h-shaped beams connected by flush end plates Reviewed

    Hiroshi Matsubara, 高橋順一, yoshiharu ikeguchi, KIKUO IKARASHI

    Journal of structural and construction engineering   Vol. 82 ( No. 740 )   1675 - 1685   2017.10

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    DOI: 10.3130/aijs.82.1675

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  • The experiment of H-shaped beams with continuous restraint on upper flange Reviewed International journal

    Tatsuhiko Sano, Kikuo Ikarashi, Yuki Ohnishi, Daigo Shirai

    2017.9

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  • Elastic buckling behavior of the surface material in sandwich structure Reviewed International journal

    Moe Yamanaka, Kikuo Ikarashi, Toru Inaba

    2017.9

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  • Elastic buckling strength of light-gauge built-up member from lipped C-section under compression Reviewed International journal

    Daimu Takahashi, Kikuo Ikarashi, Tomoki Kobashi

    2017.9

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  • Local buckling behavior of octagonal hollow cross-section member under axial compression or bending shear Reviewed International journal

    Wada Naohiro, Ikarashi Kikuo, Okada Tadayoshi, Kawabata Yosuke

    2017.9

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  • Evaluation of ultimate strength and plastic deformation capacity of square hollow section members under bending shear Reviewed International journal

    Kosuke Sato, Kikuo Ikarashi

    2017.9

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  • Buckling Mode and Plastic Deformation Capacity of Web-tapered H-shaped Steel Beams under Cyclic Shear Bending Reviewed

    KIKUO IKARASHI, Katsuhito Yoshizawa, Ryuta Hasegawa

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 82 ( No. 735 )   723 - 733   2017.5

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    &nbsp;Web-tapered tapered H-shaped beams, which have a continuous reduction in section, have been utilized in steel-frame structures for more efficient utilization of structural materials. On the other hand, section stiffness decreases along a beam's axis, and the member stress increases. For this reason, it is more important to investigate the buckling behavior and the progress of the plasticity of a tapered H-shaped beam than that of a uniform H-shaped beam.<br>&nbsp;In the past, the authors investigated elastic plate buckling strength and lateral torsional buckling strength using an energy method and numerical analysis. An estimation method and formula were proposed in those research studies.<br>&nbsp;This study examines the inelastic buckling strength and plastic deformation capacity of Web-tapered H-shaped beams with depth tapered through by a cyclic loading test and numerical analysis. Twelve tapered beams and five normal straight beams were tested. The cyclic behavior and collapse mode of these specimens were investigated. In addition, multiple simulations using numerical analyses were carried out. Then, the collapse mode and plastic deformation capacity of the tapered beam were evaluated by using indexes that were determined on the basis of the elastic buckling strength.<br>&nbsp;First, it is clear that the behavior and collapse mode of tapered beams are changed by the following characteristics: taper gradient, flange plate slenderness, web plate slenderness, and lateral bracing length. The skeleton curves of each specimen are taken from the load-displacement relationships obtained by a cyclic loading test. Using these skeleton curves, the effects of a tapered gradient on the performance of an H-section beam are examined. The value of the plastic deformation capacities of beams collapsed by web plate buckling or lateral torsional buckling are estimated from the eigenvalue of each tapered beam. This means that the plastic deformation capacity increases when the eigenvalue is higher. On the other hand, the values of the plastic deformation capacity of a beam collapsed by flange plate buckling are almost the same without regard to its own eigenvalue. Because the flange plate buckling strength decreases when the tapered gradient is steep, and plastic reason in flange is longer.<br>&nbsp;Second, the effect of a cyclic load on tapered beams is considered. It is evident that beams with low plate slenderness and large plastic deformation capacity are affected by cyclic loads. That value The plastic deformation capacity of these beams decreases by cyclic loading.<br>&nbsp;Third, the authors propose a new plate buckling slenderness index (WF&gamma;) and lateral buckling slenderness index (&gamma;b). These slenderness indexes are obtained from the elastic buckling strength. It is clear that the collapse mode of a tapered beam can be classified using these indexes. In the range of WF&gamma; / &gamma;b > 2.4, the collapse mode is plate local buckling, and in the range of WF&gamma; / &gamma;b < 2.4, the collapse mode is lateral torsional buckling.<br>&nbsp;Finally, the maximum strengths and plastic deformation capacities of tapered beams are estimated by using the plate buckling slenderness index and lateral buckling slenderness index when the collapse mode of tapered beams is classified by these indexes. The elastic buckling strength of the tapered beams do not decrease as a result of the coupled instability effect between the plate local buckling and lateral torsional buckling. However, the maximum strength and the plastic deformation capacity decrease as a result of these effects.

    DOI: 10.3130/aijs.82.723

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  • Local Buckling Strength of Uniformly Compressed Octagonal Thin Walled Section Members Reviewed

    Tomoki Kobashi, 中安誠明, unknown unknown, 菅野良一, KIKUO IKARASHI

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 82 ( No. 735 )   713 - 722   2017.5

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    &nbsp;Cold-formed steel members are widely applied in columns and other axial members in steel structures. One of the key issues in design of cold formed steel is local buckling strength under axial compression. As a means to avoid premature local buckling, we have paid on attention to the application of octagonal section members. The local buckling behavior of octagonal section members have been investigated by many researchers. However, these studies have focused mainly on regular octagonal sections and do not considered the restraining effect between adjacent plate elements. In this paper, we conducted numerical analysis (Finite Strip Analysis and Finite Element Analysis) and stab column tests, to investigate the elastic buckling strength and post buckling strength of octagonal section members where the adjacent plate elements have different width-thickness ratios.<br>&nbsp;First, we conducted Finite Strip Analysis to investigate the elastic buckling strength of octagonal section members. Through these numerical analysis, it was found that the octagonal section members generally showed higher strength than that of simply supported plate. These strength increases were depended on the difference of the width-thickness ratio between adjacent plate elements and the change of buckling mode.<br>&nbsp;Second, we examined the post buckling strength of octagonal section members through a stab-column compression test. We compared the post buckling strength of square section and that of octagonal section, and found that the post buckling strengths of octagonal section members was higher than those of square section members, when they have a same diameter. In addition, it was known that the post buckling strength of octagonal section members could be evaluated by the traditional effective-width method, where simply supported conditions were assumed.<br>&nbsp;Finally, we investigated the post buckling strength of each plate elements of octagonal section members whose adjacent plate elements have different widths by Finite Element Analysis. The post buckling strength of the plate elements with a large width was higher than of square section member. On the other hand, the post buckling strength of the plate elements with a small width was lower than that of square section member. These increase and decrease were dependent on the restraining effect between adjacent plate elements. Because of this trade-off effect between the adjacent plate elements, the effective width method, which regarded each plate elements as a simply supported plate, gave a good estimation about post buckling strength of the octagonal section members.

    DOI: 10.3130/aijs.82.713

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  • Elastic Buckling Strength of Steel Sandwich Panels under Out-of-plane Bending Reviewed

    KIKUO IKARASHI, Tooru Inaba

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 82 ( No. 733 )   475 - 483   2017.3

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    &nbsp;In a sandwich structure having a thin plate, it is of critical importance to understand the buckling behavior of the surface material. The purpose of this studyis to seek to clarify the elastic buckling strength of steel sandwich panels under out-of-plane bending and evaluate it by simple formula. For this purpose, byextending the previous theory for in-plane compression, the authors propose a theory for the elastic buckling strength of steel sandwich panels underout-of-plane bending. Furthermore, the authors analyze effect of material properties of core and skin, shape of steel sandwich panel on elastic bucklingstrength under out-of-plate bending, and propose simple formula for evaluating it.

    DOI: 10.3130/aijs.82.475

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  • Local Buckling Behavior and Evaluation Method for Structural Performance of Square Hollow Section Members under Bending Shear Force Reviewed

    Kosuke Sato, KIKUO IKARASHI

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 82 ( No. 731 )   123 - 133   2017.1

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    &nbsp;Square hollow section members such as square steel tube members and box section members are commonly used as columns in structural steel buildings. Their structural performance during earthquakes significantly affects the seismic capacities of the buildings. The square hollow section members used as columns are subjected to bending shear force during earthquakes. Local buckling determines their large deformation behavior, except for fracture. Therefore, it is necessary to investigate the large deformation behavior of the members under bending shear force governed by local buckling for an accurate evaluation of the seismic capacities of the buildings. Although numerous studies have been conducted on the local buckling of the members under bending shear force, the local buckling determinant is not sufficiently understood. Various factors affect the large deformation behavior of the members. The effect of member shapes and loading conditions and the effect of material and geometric imperfections on the large deformation behavior under bending shear force have not been sufficiently investigated. Consequently, the ultimate strength and plastic deformation capacity of the members under bending shear force have not been systematically evaluated as a function of member shapes and loading conditions.<br>&nbsp;Given this background, this study aimed to investigate the large deformation behavior of the square hollow section members under bending shear force governed by local buckling and evaluate the ultimate strength and plastic deformation capacity as a function of member shapes and loading conditions.<br>&nbsp;First, for the evaluation of the ultimate strength and plastic deformation capacity of the members, the elastic local buckling strength under bending shear force was shown. A new normalized width-thickness ratio SH based on the elastic local buckling strength and full plastic strength was proposed.<br>&nbsp;Then, after understanding the elastic local buckling behavior purely determined by member shapes and loading conditions, the large deformation behavior of the members under monotonic bending shear force was examined using numerical analysis and structural testing. The effect of initial imperfections and the effect of loading conditions on the large deformation behavior were shown. The ultimate strength and plastic deformation capacity were evaluated using the normalized width-thickness ratio SH based on the elastic local buckling strength. The evaluation expressions derived from this study enable the reasonable prediction of the ultimate strength and plastic deformation capacity under bending shear force as a function of member shapes and loading conditions.<br>&nbsp;Finally, after examining the large deformation behavior under monotonic bending shear force, the large deformation behavior of the members under cyclic bending shear force was examined using structural testing. Cyclic loading decreases the plastic deformation capacity under bending shear force. However, most of the ultimate strength and plastic deformation capacity under cyclic bending shear force can be evaluated using the evaluation expressions derived from this study. The expressions were derived via the conservative analysis where initial deflections by buckling mode were used as the most unfavorable initial imperfections.

    DOI: 10.3130/aijs.82.123

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  • Effect of Imperfection on Local Buckling Behavior of Square Hollow Section Stub Column Reviewed International journal

    Kosuke Sato, Kikuo Ikarashi

    Eighth International Conference on Steel and Aluminum Structures   2016.12

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  • Local Buckling Strength of Octagon Tubular Steel Member Reviewed International journal

    Tomoki Kobashi, Kikuo Ikarashi, Ryoichi Kanno, Nariaki Nakayasu, Nobutaka Shimizu

    Proceedings of 7th International Conference on Coupled Instabilities in Metal Structures   2016.11

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  • Elastic buckling characteristic of L-shaped beam-column connection panels for H-section members Reviewed International journal

    Utsuki Yuichi, Kikuo Ikarashi

    Insights and innovations in Structural Engineering, Mechanics and Computation,   2016.9

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  • EFFECT OF INITIAL IMPERFECTION ON LOCAL BUCKLING BEHAVIOR OF SQUARE HOLLOW SECTION MEMBER Reviewed

    Kosuke SATO, Kikuo IKARASHI

    J. Struct. Constr. Eng. AIJ   Vol. 81 ( No. 723 )   893 - 903   2016.5

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    DOI: 10.3130/aijs.81.893

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  • H形断面柱梁L型接合部パネルの弾性座屈性状 Reviewed

    五十嵐規矩夫, 宇津木優一

    鋼構造年次論文報告集   Vol. 23   241 - 247   2015.11

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  • Elastic Buckling Strength of H-shaped Tapered Beam-columns under Axial and Bending Shear Force Reviewed

    Kikuo Ikarashi, Ryuta Hasegawa

    J. Struct. Constr. Eng. AIJ   Vol. 80 ( No. 716 )   1599 - 1609   2015.10

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    Tapered H-shaped beam-columns have been used in steel frame structures from the perspective of reduction of the weight of steel frame and improvement of economy. On the other hand, section stiffness of tapered beam-columns is weaker and stress within tapered beam-columns is greater than uniform beam-columns. For this reason, it is important to grasp elastic buckling behavior of tapered beam-columns.<br> This study targets H-shaped beam-columns with web depth tapered under axial and bending shear force, and is intended to reveal elastic local and overall buckling behavior. First, stress distribution within tapered beam-columns is cleared, and elastic buckling strength is derived by theoretical analysis with energy method using the stress distribution. Based on the analysis result, evaluation method of elastic buckling strength of H-shaped tapered beam-columns is proposed.

    DOI: 10.3130/aijs.80.1599

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  • EFFECT OF END STIFFENER REINFORCEMENT ON LATERAL TORSIONAL BUCKLING BEHAVIOR OF H-SHAPED BEAMS WITH LARGE DEPTH–THICKNESS RATIO Reviewed International journal

    Daiki KUBOTA, Kikuo IKARASHI

    1 - 9   2015.9

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  • Elastic Buckling Characteristics of Corrugated Tank under Fundamental Load Reviewed International journal

    Yoshifumi YOKOYAMA, Kikuo IKARASHI

    1 - 9   2015.9

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  • EFFECT OF NEUTRAL-AXIS POSITION ON THE ELASTIC BUCKLING CHARACTERISTICS OF CONTINUOUS COMPOSITE BEAMS Reviewed International journal

    Daigo SHIRAI, Kikuo IKARASHI

    1 - 9   2015.9

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  • Effect of Imperfection on Behavior of Square Hollow Section Member Reviewed International journal

    Kosuke Sato, KIKUO IKARASHI

    Proceedings   1–9   2015.7

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  • Evaluation Method of Ultimate Strength and Plastic Deformation Capacity of H-Shaped Steel Beam-Columns Reviewed

    Kikuo Ikarashi, Ryuta Hasegawa

    Vol. 61B   209 - 216   2015.3

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  • Large Deformation Behavior and Collapse Mode of Rectangular Corrugated Steel Walls Reviewed

    Kikuo Ikarashi, Jun Okamoto, Keiichi Sato

    J. Struct. Constr. Eng.   Vol. 80 ( No. 710 )   693 - 701   2015.3

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    DOI: 10.3130/aijs.80.693

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  • Elastic Buckling Characteristics and Optimum Rigidity of Stiffened Plate under Bending and Share Stress Reviewed

    Kikuo IKARASHI, Yoshihiro YANAGISHITA

    J. Struct. Constr. Eng.   Vol. 80 ( No. 708 )   321 - 331   2015.2

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    DOI: 10.3130/aijs.80.321

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  • Elastic Buckling Strength of H-shaped Beams with Continuous Complete Restraint on Upper Flange Reviewed

    Kikuo IKARASHI, Yuki OHNISHI

    J. Struct. Constr. Eng. , AIJ   Vol. 79 ( No. 706 )   1899 - 1908   2014.12

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    DOI: 10.3130/aijs.79.1899

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  • Evaluation of Coupled Local Buckling Strength of Square Hollow Section Member under Biaxial Bending Shear Force and Axial Force Reviewed

    Kosuke Sato, KIKUO IKARASHI

    Journal of Structural and Construction Engineering   Vol. 79 ( No. 706 )   1909 - 1918   2014.12

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    DOI: 10.3130/aijs.79.1909

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  • Effect of End Stiffeners on Lateral Buckling Behavior of H-shaped Beams Reviewed

    Kikuo IKARASHI, Daiki KUBOTA

    Vol. 22   632 - 637   2014.11

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  • Elastic Buckling Characteristics of Corrugaed Tank under Fundamental Loading Conditions Reviewed

    Kikuo IKARASHI, Yoshifumi YOKOYAMA

    Vol. 22   728 - 733   2014.11

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  • Analytical Study on Vibrational Characteristics of Out-of-plane Behavior of Large-scale Partition walls with intermediate sub beams Reviewed

    Takushi ISHIDA, Tadashi ISHIHARA, Morimasa WATAKABE, Masahiro SUZUKI, Kikuo IKARASHI

    Vol. 22   328 - 333   2014.11

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  • Effect of Position of Neutral Axis to Elastic Buckling Characteristics on H-shaped beam Reviewed

    Kikuo IKARASHI, Daigo SHIRAI

    Vol. 22   638 - 643   2014.11

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  • Plastic Deformation Capacity of H-shaped Beams Reinforced by End Stiffeners Reviewed

    KIkuo IKARASHI, Satoshi MIYAZAKI, Yasuo ICHINOHE, Kohji FUKUDA, Junichiro ONO, Seiya KIMURA

    J. Struct. Constr. Eng., AIJ   Vol. 79 ( No. 705 )   1667 - 1675   2014.11

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    DOI: 10.3130/aijs.79.1667

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  • Elastic Local Buckling Strength of Stiffened Plate under Bending Shear Stress Reviewed International journal

    Yoshihiro YANAGISHITA, Kikuo IKARASHI

    IABSE Symposium Madrid 2014 Report   Vol. 102   239 - 245   2014.9

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    DOI: 10.2749/222137814814027611

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  • Strength and Plastic Deformation Capacity of H-shaped Beam-columns Reviewed International journal

    Ryuta HASEGAWA, Kikuo IKARASHI

    IABSE Symposium Madrid 2014 Report   Vol. 102   579 - 585   2014.9

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    DOI: 10.2749/222137814814028223

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  • Evaluation of Local Buckling Strength of Square Hollow Section Member Reviewed International journal

    Kosuke Sato, KIKUO IKARASHI

    IABSE Symposium Madrid 2014 Report   Vol. 102   223 - 230   2014.9

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    DOI: 10.2749/222137814814027657

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  • Effect of Initial Imperfection on Large Deformation Behavior of Cold-Formed Square Steel Tube Member Reviewed

    Kosuke Sato, KIKUO IKARASHI

    Journal of Structural Engineering   Vol. 60B   327 - 334   2014.3

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  • Evaluation Method of Ultimate Strength and Plastic Deformation Capacity of H-shaped Steel Columns Reviewed

    kikuo IKARASHI, Ryuta HASEGAWA

    Proceeding of Constructional Steel   Vol. 21   333 - 338   2013.11

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  • Derivation of coupled Local Buckling Strength of Square Hollow Section Member Reviewed

    Kosuke SATO, Kikuo IKARASHI

    Proceeding of Constructional Steel   Vol. 21   327 - 332   2013.11

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  • Strong motion observation on a warehouse with large-scale partition walls Reviewed

    Tdashi ISHIHARA, Morimasa WATAKABE, Takashi HASEGAWA, Kikuo IKARASHI, Takushi ISHIDA

    Proceeding of Constructional Steel   Vol. 21   725 - 730   2013.11

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  • 端部スチフナ補剛を施したH形断面梁の繰返し挙動

    宮崎曉, 柳下義博, 五十嵐規矩夫, 一戸康生, 福田浩司, 常木康弘

    日本建築学会大会学術講演梗概集,構造Ⅲ   1149 - 1150   2013.8

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  • 二軸曲げせん断力と軸力を受ける正方形中空断面部材の連成局部座屈耐力の導出

    佐藤公亮, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1235 - 1236   2013.8

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  • ウェブ幅厚比が大きい梁に適用する梁端ウェブ補剛に関する研究 その2 梁の破壊モードに関する検討

    安藤顕祐, 常木康弘, 木村征也, 小野潤一郎, 一戸康生, 福田浩司, 北岡聡, 鈴木至, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1155 - 1156   2013.8

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  • ウェブ幅厚比が大きい梁に適用する梁端ウェブ補剛に関する研究 その3 スチフナの溶接施工試験

    鈴木至, 一戸康生, 福田浩司, 北岡聡, 常木康弘, 小野潤一郎, 木村征也, 安藤顕祐, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1157 - 1158   2013.8

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  • 不均等曲げせん断力を受ける補剛板の弾性座屈耐力

    柳下義博, 五十嵐規矩夫, 宮崎曉, 一戸康生, 福田浩司, 常木康弘

    日本建築学会大会学術講演梗概集,構造Ⅲ   1151 - 1152   2013.8

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  • 上フランジを連続拘束されたH形断面梁の弾性横座屈耐力

    大西佑樹, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1101 - 1102   2013.8

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  • 矩形形状を有する波形鋼板のせん断座屈耐力及び座屈形式

    岡本純, 五十嵐規矩夫, 佐藤圭一

    日本建築学会大会学術講演梗概集,構造Ⅲ   861 - 862   2013.8

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  • 新規幅厚比指標によるH形断面柱の局部座屈耐力及び塑性変形能力評価 その1 H形断面柱の局部座屈耐力と塑性変形能力

    長谷川龍太, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1217 - 1218   2013.8

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  • ウェブ幅厚比が大きい梁に適用する梁端ウェブ補剛に関する研究 その1 梁端ウェブの補剛形式

    小野潤一郎, 常木康弘, 木村征也, 安藤顕祐, 一戸康生, 福田浩司, 北岡聡, 鈴木至, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1153 - 1154   2013.8

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  • せん断曲げを受けるH形断面テーパー梁の座屈耐力と塑性変形性能 その1 弾性座屈耐力評価

    吉澤克仁, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1139 - 1140   2013.8

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  • ウェブ幅厚比が大きい梁に適用する梁端ウェブ補剛に関する研究 その4 実大H形鋼による変形能力の確認

    北岡聡, 一戸康生, 福田浩司, 鈴木至, 常木康弘, 小野潤一郎, 木村征也, 安藤顕祐, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1159 - 1160   2013.8

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  • 製造加工による初期不整が冷間成形角形鋼管部材の大変形挙動に与える影響

    杉山卓秀, 五十嵐規矩夫, 佐藤公亮

    日本建築学会大会学術講演梗概集,構造Ⅲ   1237 - 1238   2013.8

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  • 新規幅厚比指標によるH形断面柱の局部座屈耐力及び塑性変形能力評価 その2 新規幅厚比指標による軸力を考慮した部材性能評価

    五十嵐規矩夫, 長谷川龍太

    日本建築学会大会学術講演梗概集,構造Ⅲ   1219 - 1220   2013.8

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  • 曲げせん断力を受けるH形断面梁の局部座屈性状に及ぼす梁端部形式の影響

    稲葉澄, 五十嵐規矩夫

    日本建築学会大会学術講演梗概集,構造Ⅲ   1145 - 1146   2013.8

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  • Elastic Lateral Buckling Strength of Taperd H-Shaped Beam under Shear Bending Reviewed

    Kikuo Ikarashi, Katsuhito Yoshizawa

    Jornal of Structural and Construction Engineering   Vol. 78 ( No. 690 )   1493 - 1501   2013.8

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    DOI: 10.3130/aijs.78.1493

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  • せん断曲げを受けるH形断面テーパー梁の座屈耐力と塑性変形性能 その2 崩壊形式と塑性変形能力評価

    今井卓司, 五十嵐規矩夫, 吉澤克仁

    日本建築学会大会学術講演梗概集,構造Ⅲ   1141 - 1142   2013.8

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  • Stress Distribution and Elastic Local Buckling Strength of Tapered H-shaped Beam under Shear Bending Reviewed

    Kikuo Ikarashi, Katsuhito Yoshizawa

    journal of Structural and Construction Engineering   Vol. 78 ( No. 688 )   1139 - 1148   2013.6

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    DOI: 10.3130/aijs.78.1139

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  • Elastic Local Buckling Strength of Rectangular Hollow Section Column under Biaxial Bending Share International journal

    Kikuo Ikarashi, Kosuke Sato, Tao Wang

    10CUEE Conference Proceedings   863 - 868   2013.3

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  • Cyclic Behavior of Corrugated Steel Shear Diaphragms with End Failure Reviewed International journal

    Nobutaka Shimizu, Ryoichi Kanno, Kikuo Ikarashi, Keiichi Sato, Koji Hanya

    Jornal of Structural Engineering, ASCE   Volume 139 ( Number 5 )   796 - 806   2013

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    DOI: 10.1061/(ASCE)ST.1943-541X.0000669

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  • Plastic Deformation Capacity of Corrugated Web Beam under Shear Bending Reviewed International journal

    Jun Okamoto, Kikuo Ikarashi, Keisuke Kozaka, Yasunori Nakamura

    Proceeding of the 6th International Conference on Coupled Instabilities in Metal Structures   135 - 142   2012.12

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  • Buckling Mode of Steel Sandwich Panel under Shear Stress Reviewed International journal

    Satoshi Miyazaki, Kikuo Ikarashi, Keisuke Kozaka, Nobutaka Shimizu

    Proceeding of the 6th International Conference on Coupled Instabilities in Metal Structures   595 - 602   2012.12

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  • Elastic Buckling Behavior of H-Shaped Beams with Continuous Restraint on Upper Flange Reviewed International journal

    Yuki Ohnishi, Kikuo Ikarashi

    Proceeding of the 6th International Conference on Coupled Instabilities in Metal Structures   231 - 238   2012.12

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  • Buckling Strength Evaluation of Steel Sandwich Panel under Shear Stress Reviewed

    Kikuo IKARASHI, Satoshi MIYAZAKI, Nobutaka SHIMIZU

    Proceeding of Constructional Steel   Vol. 20   71 - 76   2012.11

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  • Local Buckling Behavior and Performance Evaluation of Corrugated Web Stub Column under Pure Compression Reviewed

    Kikuo IKARASHI, Jun OKAMOTO, Yasunori NAKAMURA

    Proceeding of Constructional Steel   Vol. 20   723 - 728   2012.11

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  • Cyclic Biaxial Bending Behavior and Width-thickness Ratio Limitation of Cold-formed Rectangular Hollow Section Member Reviewed

    Kikuo IKARASHI, Kosuke SATO

    Proceeding of Constructional Steel   Vol. 20   711 - 716   2012.11

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  • Elastic Buckling Behavior of H-Shaped Beams with Continuous Restraint on Upper Flange Reviewed

    Kikuo Ikarashi, Yuki OHNISHI

    Proceeding of Constructional Steel   Vol. 20   717 - 722   2012.11

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  • ELASTIC LOCAL BUCKLING STRENGTH AND WIDTH-THICKNESS RATIO OF RECTANGULAR HOLLOW SECTION COLUMN UNDER BIAXIAL BENDING Reviewed International journal

    Kosuke Sato, Kikuo Ikarashi, Tao Wang

    Nordic Steel Construction Conference 2012   157 - 166   2012.9

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  • COUPLED BUCKLING BEHAVIOR AND PLASTIC DEFORMATION CAPACITY OF H-SHAPED STEEL BEAMS UNDER CYCLIC BENDING SHEAR Reviewed

    Kikuo IKARASHI, Ryota SUEKUNI, Nobyuki TOMO

    Jornal of Structural and Construction Engineering   Vol. 77 ( No. 678 )   1319 - 1328   2012.8

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    DOI: 10.3130/aijs.77.1319

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  • Elastic Local Buckling Strength of Taperd H-shaped Cantilever Beams Reviewed International journal

    Katsuhito Yoshizawa, Kikuo Ikarashi

    Applied Mechanics and Materials   Vol. 166-169   1033 - 1039   2012.6

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    DOI: 10.4028/www.scientific.net/AMM.166-169.1033

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  • Cyclic Behavior of High Strength Steel H-shaped Beam Reviewed International journal

    Takuma Shinohara, Ryota Suekuni, Kikuo Ikarashi

    Applied Mechanics and Materials   Vol. 174-177   159 - 165   2012.6

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    DOI: 10.4028/www.scientific.net/AMM.174-177.159

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  • ALLOWABLE STRENGTH AND CYCLIC CHARACTERISTIC CONSIDERING OF STRESS CONCENTRATION OF PERFORATED BEAM MADE OF HIGH STRENGTH STEEL Reviewed

    Kikuo IKARASHI, Tadashi ISHIHARA, Fumihiko IGURO

    Journal of Structural and Construction Engineering (Transactions of AIJ)   Vol. 77 ( No. 675 )   755 - 763   2012.5

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    This study researches how stress concentration has an effect on cyclic behavior of H-shaped beam with web perforation made of high strength steel “H-SA700”. It is examined and compared with the same shaped beam made of “SN400” by cyclic loading tests. Cyclic elastic deformation of H-SA700 increases even under constant-amplitude cyclic loading. This property may amplify the local plasticity near a circular hole. So new yield strength, Qc and QF, by means of elastic theory of stress concentration, are suggested. Qc is a minimum strength when somewehre in a hole edge will be plastic. Similarly QF is a minimum strength in a minimum section. In addition large deformation behavior of H-SA700 is shown.

    DOI: 10.3130/aijs.77.755

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  • Stress separation concept for plate buckling strength under flexural-shear and axial force Reviewed International journal

    Takuya Suzuki, Kikuo Ikarashi

    Journal of Constructional Steel Research   70 ( No. 70 )   317 - 325   2012.3

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    DOI: 10.1016/j.jcsr.2011.10.003

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  • EVALUATION OF PLASTIC DEFORMATION CAPACITY OF H-SHAPED STEEL BEAMS WITH THE NEWLY LIMITATION VALUE OF PLATE SLENDERNESS Reviewed International journal

    Kikuo Ikarashi, Tao Wang, Ryota Suekuni, Takuma Shinohara

    JOINT CONFERENCE PROCEEDINGS 9th International Conference on Urban Earthquake Engineering/ 4th Asia Conference on Earthquake Engineering   1009 - 1014   2012.3

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  • Evaluation of plastic deformation capacity of H-shaped steel beams with new value of plate slenderness Reviewed International journal

    K. Ikarashi, R. Suekuni, T. Shinohara, T. Wang

    Behaviour of Steel Structures in Seismic Areas   599 - 606   2012.1

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  • EFFECTS OF BOUNDARY CONDITIONS AND END MOMENT RATIO ON ELASTIC LATERAL BUCKLING STRENGTH OF H-SHAPED BEAMS Reviewed

    Kikuo IKARASHI, Nobuyuki TOMO, Tao WANG

    Jornal of Structural and Construction Engineering   Vol. 76 ( No. 670 )   2173 - 2181   2011.12

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    DOI: 10.3130/aijs.76.2173

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  • Post Local Buckling Behavior and Ultimate Capacity of H–section Beam Reviewed International journal

    Tao Wang, Kikuo Ikarashi

    Journal of Asian Architecture and Building Engineering   Vol. 10 ( No. 2 )   429 - 436   2011.11

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    DOI: 10.3130/jaabe.10.429

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  • A New Evaluation Value of Plastic Deformation Capacity of H-shaped Beams Reviewed

    Kikuo Ikarash, Takuma Shinohara, Tao WANGi, Ryota Sekuni

    Proceeding of Constructional Steel   Vol. 19   247 - 252   2011.11

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  • Elastic Plate Local Buckling Strength of Tapered H-shaped Beam Reviewed

    Kikuo Ikarash, Katsuhito Yoshizawa

    Proceeding of Constructional Steel   Vol. 19   261 - 266   2011.11

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  • Elastic Local Buckling Strength and Limiting Width-Thickness Ratio of Rectangular Hollow Section Column under Biaxial Bending Reviewed

    Kikuo Ikarash, Tao Wang, Kosuke Sato

    Proceeding of Constructional Steel   Vol. 19   697 - 704   2011.11

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  • Any Factor of Evaluation of Lateral Buckling Strength of H-shaped Steel Beams Reviewed

    KIKUO IKARASHI, Nobuyuki Tomo, NA

    Proceeding of Constructional Steel   Vol. 19   221 - 228   2011.11

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  • Evaluation of Plastic Deformation Capacity of H-shaped Steel Beams with the Newly Proposed Limitation Value of Plate Slenderness Reviewed

    Kikuo Ikarashi, Ryota Sekuni, Takuma Shinohara, Tao WANG

    Jornal of Structural and Construction Engineering   Vol. 76 ( No. 668 )   1865 - 1872   2011.10

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    DOI: 10.3130/aijs.76.1865

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  • Elastic Plate Local Buckling Strength of taperd H-Shaped Beam

    Yoshizawa katsuhito, Ikarashi kikuo

    619 - 620   2011.8

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  • Coupled Buckling Behavior and Plastic Deformation capacity of H-Shaped Beams under Bending Shear Part 1 Experimental results of Cyclic Loading

    Ikarashi kikuo, Suekuni Ryota, Wang Tao

    629 - 630   2011.8

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  • Shear Bending Behavior of Corrugated Web Girder Part 1 Experiment

    Nakamura yasunori, Ikarashi kikuo, Kozaka Keisuke

    651 - 652   2011.8

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  • Elastic Loacal Buckling Strength of Rectangular Hollow Section Column under Bixial Bending

    Sato Kosuke, Ikarashi kikuo, Wang Tao

    679 - 680   2011.8

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  • Effective Length Factor and Moment Modification Factor of Evaliation of Lateral Buckling Strength of H-Shaped Steel Beams

    Tomo Nobuyuki, Ikarashi kikuo, Wang Tao, Suekuni Ryota

    625 - 626   2011.8

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  • A New Evaluation Value of Plastic Deformation Capacity of H-shaped Beams

    Shinohara takuma, Ikarashi kikuo, Wan Tao, Suekuni Ryota

    627 - 628   2011.8

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  • Shear Bending Behavior of Corrugated Web Girder Part 2 Performance Evaluation

    Kozaka Keisuke, Ikarashi kikuo, Nakamura yasunori

    653 - 654   2011.8

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  • Coupled Buckling Behavior and Plastic Deformation capacity of H-Shaped Beams under Bending Shear Part 2 Proposal of New Indicator of Performance Evaluation

    Suekuni Ryota, Ikarashi kikuo, Wang Tao

    631 - 632   2011.8

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  • End Failure in Corrugated Steel Shear Diaphrams Part 4 Study on Applicability of End Failure Mode for Thin-walled Structure

    Sato Keiichi, Shimizu Nobutaka, Tanaka Hiroshi, Kawai Yshimichi, Okada Tadayoshi, Ikarashi Kikuo

    923 - 924   2011.8

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  • Evaluation of Single Buckling and Coupled Buckling Load of Columns in Braced Frame Reviewed

    Tao Wang, Kikuo Ikarashi

    Journal of Structural and Construction Engineering   Vol. 76 ( No. 661 )   675 - 684   2011.3

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    DOI: 10.3130/aijs.76.675

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  • Buckling Characteristics of Sandwich Panel Subjected to In-plane Compression Reviewed

    kikuo IKARASHI, Keisuke KOSAKA Masanori FUJITA, 藤田正則

    Proceedings of Constructional Steel   Vol. 18   231 - 236   2010.11

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  • Cyclic Behavior of Plates with a Circular Hole made of High Strength Steel Reviewed

    Kikuo IKARASHI, Tadashi ISHIHARA, Fumihiko IGURO

    Proceedings of Constructional Steel   Vol. 18   225 - 230   2010.11

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  • STRENGTH ESTIMATION OF END FAILURES IN CORRUGATED STEEL SHEAR DIAPHRAGMS Reviewed International journal

    Nobutaka Shimizu, Kikuo Ikarashi

    International Colloquium Stability and Ductility of Steel Structures, Proceedings of SDSS' Rio 2010   Vol. 2   1043 - 1050   2010.9

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  • ELASTO-PLASTIC DEFORMATION BEHAVIOR OF CORRUGATED STEEL DIAPHRAGM UNDER CYCLIC SHEAR LOAD Reviewed

    Nobutaka SHIMIZU, Tadayoshi OKADA, Kikuo IKARASHI

    JORNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING   Vol. 75 ( No. 655 )   1745 - 1754   2010.9

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    DOI: 10.3130/aijs.75.1745

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  • ELASTO-PLASTIC BUCKLING BEHAVIOR OF H-SHAPED BEAM WITH LARGE DEPTH-THICKNESS RATIO UNDER CYCLIC LOADING Reviewed International journal

    Tao WANG, Kikuo IKARASHI

    International Colloquium Stability and Ductility of Steel Structures, Proceedings of SDSS' Rio 2010   Vol. 1   377 - 384   2010.9

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  • A Study on Post Shear Buckling Behavior in Corrugated Steel Plate Reviewed

    Nobutaka SHIMIZU, Tadayoshi OKADA, Kikuo IKARASHI

    Journal of Structural and Construction Engineering   Vol. 75 ( No. 651 )   1013 - 1020   2010.5

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    DOI: 10.3130/aijs.75.1013

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  • CYCLIC BEHAVIOR AND COLLAPSE MODE OF HIGH STRENGTH STEEL H-SECTION BEAMS International journal

    Kikuo Ikarashi, Ryota Suekuni, Tao Wang

    JOINT CONFERENCE PROCEEDINGS 7th International Conference on Urban Earthquake Engineering (7CUEE) & 5th International Conference on Earthquake Engineering (5ICEE)   925 - 930   2010.3

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  • Hysteretic Behavior of Thin Web Plate under Cyclic Bending-Shear Loading International journal

    Kikuo Ikarashi

    Sixth International Conference on Urban Earthquake Engineering   Vol. 6   687 - 691   2009.3

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  • Coupled Buckling Strength of H-Shaped Beams under Bending- Shear Reviewed International journal

    Tao Wang, kikuo Ikarashi

    Fifth International Conference on Coupled Instabilities in Metal Structures   Vol. 1   341 - 348   2008.6

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  • Elastic Buckling Strength of Rectangular Corrugate Plates under Shear Loading Reviewed International journal

    Kikuo Ikarashi, Masashi Fujisawa, Lu Huafeng

    Fifth International Conference on Coupled Instabilities in Metal Structures   Vol. 1   317 - 324   2008.6

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  • Evaluation of Elastic Local Buckling Strength of H-Shaped Beam under Bending-Shear International journal

    Tao Wang, kikuo Ikarashi

    Fifth International Conference on Thin-Walled Structures   Vol. 2   1089 - 1096   2008.6

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  • Hysteretic Characteristic of Thin Web Plate under Cyclic Bending-Shear Loading International journal

    kikuo Ikarashi

    Fifth International Conference on Thin-Walled Structures   Vol. 2   663 - 670   2008.6

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  • Effect on the Position of Neutral Axis to Elastic Buckling Strength of Plates under Bending Shear Reviewed

    Kikuo IKARASHI, Toshiaki OTABE

    Journal of Structural Engineering   Vol. 54B   665~670   2008.3

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  • 薄板鉄鋼材料を用いた鋼構造建築物の可能性の探求と開発 第3期21世紀鋼構造フォーラムの中間報告

    富岡義人, 五十嵐規矩夫, 河野守, 石原直, 穂苅實, 作本好文, 清水信孝, 藤田政則, 石丸亮, 太田克也, 大隅康令, 大室彰男, 渡邊力

    独立行政法人建築研究所,社団法人日本鉄鋼連盟,社団法人日本鋼構造協会   19 - 24   2006.11

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  • Post-buckling behavior of thin web plate under cyclic shear loading International journal

    T.Tomizawa, M.Shimizu, K.Ikarashi

    STESSA 2006 Behaviour of Steel Structures in Seisemic Areas   271 - 276   2006.8

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  • A STUDY ON SHARE FORCE TRANSMISSION MECHANISM OF H-SHAPED STEEL BEAMS WITH WEB-OPENING International journal

    K. Ikarashi, T. Suzuki

    7th International Conference on STEEL & SPACE STRUCTURES   275 - 282   2002

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  • A Fundamental Study on the Effect of Binding Section in Tensional Properties of Steel

    SETO Kohei, SUZUKI Toshiro, IKARASHI Kikuo, KANEKO Hirofumi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 2000 )   407 - 408   2000.7

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  • A Study on Influence of Shear Stress on Plate Coupled Instbility and Plastic Deformation Capacity of H-shaped Steel Beams International journal

    Kikuo Ikarashi, Junko Yamazaki

    Coupled Instabilities in Metal Structures CIMS'2000   563 - 570   2000

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  • A Study on Statical Characteristics of Concrete-Filled Circular Tubular Branch Joints : Part 2 Evaluation of Strength Cosidered Stress Condition in Branch Joint

    KASHIMURA Toshiya, SUZUKI Toshiro, IKARASHI Kikuo, KANEKO Hirofumi, HIGUCHI Mitsuru, HIRADE Tohru, KIKUCHI Takeshi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   701 - 702   1999.7

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  • A Study on Plastic Deformation Capacity of H-shaped High Strength Steel Beams connected to Box Column : Part3. Effect of Beams Section Form on Plastic Deformation Capacity

    TAMURA Kinya, SUZUKI Toshiro, IKARASHI Kikuo, AZUMA Takeshi, NAKAZAWA Satoshi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   505 - 506   1999.7

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  • A Study on Structural Properties of Truss Beams with Shear Panels : Part 2 Effect of Shear Panels on Structural Properties

    IMAI Ichiro, SUZUKI Toshiro, IKARASHI Kikuo, ISHIHARA Tadashi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   429 - 430   1999.7

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  • A Study on Structural Properties of Truss Beams with Shear Panels : Part 3 Truss Beams under Cyclic Loading

    IKARASHI Kikuo, SUZUKI Toshiro, IMAI Ichiro, ISHIHARA Tadashi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   431 - 432   1999.7

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  • A Study on Lateral Buckling Behavior of H-shaped Beams with Bracing on Tensile Flange

    ONISHI Ko, SUZUKI Toshiro, IKARASHI Kikuo, SUZUKI Ritsu

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   423 - 424   1999.7

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  • A Study on Structural Properties of Truss Beams with Shear Panels : Part 1 Experiment Outline and Primary Structural Properties

    ISHII Hideaki, SUZUKI Toshiro, IKARASHI Kikuo, IMAI Ichiro, ISHIHARA Tadashi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   427 - 428   1999.7

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  • A Study on Estimate for Plastic Deformation Capacity of Steel Members Reflected Meterial Properties

    SATSUKAWA Keiichi, SUZUKI Toshiro, IKARASHI Kikuo

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   413 - 414   1999.7

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  • A Study on Statical Characteristics of Concrete-Filled Circular Tubular Branch Joints : Part 1 Influence of Form in Branch Joint

    NAKAZAWA Tetsuya, SUZUKI Toshiro, IKARASHI Kikuo, KANEKO Hirofumi, HIGUCHI Mitsuru, HIRADE Tohru, KIKUCHI Takeshi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1999 )   699 - 700   1999.7

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  • Behavior of Branch Joint of Steel Truss : Part2 Influence of Diameter Ratio, Radius Thickness Ratio and Axial Force for Concrete Filled Type

    KIKUCHI Takeshi, SUZUKI Toshiro, IKARASHI Kikuo, KANEKO Hirofumi, HIGUCHI Mitsuru, HIRADE Tohru, LEE Seidai

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   715 - 716   1998.7

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  • Study on stiffness and bending strenght of Cross-H shaped Steel-Concrete without covering concrete : Part2 SC column without concrete in the midspan

    MIYASHITA Shin-ichi, SUZUKI Toshiro, IGARASHI Kikuo, HORI Yasuhiro

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   1055 - 1056   1998.7

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  • Study on stiffness and bending strength of Cross-H shaped steel-Concrete without covering concrete : Part1 Influence of the place of stiffener

    HORI Yasuhiro, SUZUKI Toshro, IGARASHI Kikuo, MIYASHITA Shin-ichi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   1053 - 1054   1998.7

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  • The Influence of Material Properties on The Plastic Deformation Capacity of Steel Members : Part 2 Sampling Method of Factor to Estimate of Plastic Deformation Capacity and Estimate of Plastic Deformation Capacity

    SATSUKAWA Keiichi, SUZUKI Toshiro, IKARASHI Kikuo

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   613 - 614   1998.7

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  • Behavior of Branch Joint of Steel Pipe Truss : (Part1.)Effect of Concrete Filled in Main Pipe

    NAKAZAWA Tetsuya, SUZUKI Toshiro, IKARASHI Kikuo, KANEKO Hirofumi, HIGUCHI Mitsuru, HIRADE Tohru, LEE Seidai

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   713 - 714   1998.7

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  • A Study on Plastic Deformation Capacity of 590N/mm^2 High Strength Steel Beams with Large Depth-thickness Ratio : part2 Evaluation of Plastic Deformation Capacity and Effect of the Material Property on the Plastic Deformation Capacity

    ISHII Hideaki, SUZUKI Toshiro, IKARASHI Kikuo, AZUMA Takeshi, KOGURE Kosuke

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   607 - 608   1998.7

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  • The Influence of Material Properties on The Plastic Deformation Capacity of Steel Members : Part 1 Investgation of Material Properties in Plastic Region

    IKARASHI Kikuo, SUZUKI Toshiro, SATSUKAWA Keiichi

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   611 - 612   1998.7

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  • Influence of Shear Stress on Local Buckling Behavior and Plastic Deformation Capacity of H-shaped Steel Beams

    YAMAZAKI Junko, SUZUKI Toshiro, IKARASHI Kikuo, SUEOKA Toshiyuki

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   603 - 604   1998.7

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  • A Study on Plastic Deformation Capacity of 590N/mm^2 High Strength Steel Beams with Large Depth-thickness Ratio : part1 Properties of Local Buckling

    SUZUKI Ritsu, SUZUKI Toshiro, IKARASHI Kikuo, AZUMA Takeshi, KOGURE Kosuke

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   605 - 606   1998.7

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  • A Study on Plastic Deformation Capacity of H-Shaped High Strength Steel Beams connected to Box Column : Part1. An outline of Experiment And Collapse Forms

    AZUMA Takeshi, SUZUKI Toshiro, IKARASHI Kikuo, YOSHINARI Yutaka

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   369 - 370   1998.7

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  • A Study on Plastic Deformation Capacity of H-Shaped High Strength Steel Beams connected to Box Column : Part2. Effect of Plate Thickness on Plastic Deformation Capacity

    NAKAZAWA Satoshi, SUZUKI Toshiro, IKARASHI Kikuo, AZUMA Takeshi, YOSHINARI Yutaka

    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. C-1, Structures III, Timber structures steel structures steel reinforced concrete structures   ( 1998 )   371 - 372   1998.7

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  • EVALUATION OF THE PLASTIC DEFORMATION CAPACITY MODIFIED BY THE EFFECT OF DUCTILE FRACTURE International journal

    Toshiro Suzuki, Toshiyuki Ogawa, Kikuo Ikarashi

    Behavior of Steel Structrures in Seismic Areas   327 - 333   1997

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  • A STUDY ON PLASTIC DEFORMATION CAPACITY OF H-SHAPED HYBRID BEAM-COLUMNS International journal

    TOSHIRO SUZUKI, TOSHIYUKI OGAWA AND KIKUO IKARASHI

    COUPLED INSTABILITIES IN METAL STRUCTURES CIMS'96   301 - 308   1996

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  • A STUDY ON LOCAL BUCKLING BEHAVIOR OF HYBRID H-SHAPED SHORT. COLUMN

    鈴木敏郎, 小河利行, 五十嵐規矩夫

    JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING   ( 438 )   147 - 155   1992

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    DOI: 10.3130/aijsx.438.0_147

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  • Experimental and Theoretical Study of a Single Layer Reticulated Dome International journal

    T. SUZUKI, T. OGAWA. I. KUBODERA, K. IKARASHI

    PROCEEDINGS OF THE INTERNATIONAL IASS SYMPOSIUM   3   85 - 92   1991

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  • 鋼構造柱部材の塑性変形能力改善に関する研究 Reviewed

    五十嵐規矩夫

    1991

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    Publishing type:Master’s thesis  

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Books

  • 建築構造設計概論

    竹内徹, 五十嵐規矩夫, 石岡恒一, 金箱温春, 工藤俊喜, 小泉渉, 坂田弘安, 西尾正人, 西村康志郎, 本橋まり子

    実教出版  2024.9  ( ISBN:9784407364729

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  • 建築構造設計

    竹内徹, 五十嵐規矩夫, 石岡恒一, 金箱温春, 工藤俊喜, 小泉渉, 坂田弘安, 西尾正人, 西村康志郎, 本橋まり子

    実教出版株式会社  2023.1  ( ISBN:9784407205589

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  • 鋼構造許容応力度設計規準 Reviewed

    田川 泰久, 五十嵐規矩夫, 岡崎太一郎, 伊藤浩資, 井戸田秀樹, 小野潤一郎, 竹内徹, 多田元英, 中込 忠男, 中野 達也, 増田 浩志, 見波 進, 山田 丈富

    日本建築学会  2019.10 

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  • 薄板軽量形構造建築物設計の手引き 第2版 Reviewed

    日本鉄鋼連盟, 五十嵐規矩夫

    技報堂出版  2014.3 

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  • Stability Problems of Steel Structures 2013

    Toru Takeuchi, 小崎均, 井戸田秀樹, YOSHIHIRO KIMURA, 金尾伊織, 宇佐美徹, 津田恵吾, KIKUO IKARASHI, 荒木慶一, Motohide Tada, 田川浩, MASUMI FUJIMOTO

    2013.6 

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    Responsible for pages:202p   Language:Japanese   Book type:Scholarly book

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  • Japanese Architectural Standard Specification JASS6[2007] Structural Steelwork Specification for Building Construction Reviewed

    Hisayuki Okada, Masanori Mori, Kikuo Ikarashi, Isao Kimura, Ryoichi Haneishi, Shinji Matsushita, Yuka Matsumoto, Kou Matoba

    2012.10 

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  • Recommendation for Plastic Design of Steel Structures Reviewed

    Hiroyuki Tamai, 近藤一夫, KIKUO IKARASHI, 聲高裕治, 金尾伊織, 桑原進, 聲高裕治, 清水斉, 廣重隆明, 鈴木直幹, 高松隆夫

    2010.2 

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  • 鋼構造塑性設計指針 第2版

    日本建築学会  2010 

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  • Recommendation for Stability Design of Steel Structures (Rev.2009)

    多田元英, 荒木 慶一, 竹内徹, 井戸田 秀樹, 金尾 伊織, 川口 淳, 五十嵐規矩夫, 田川 浩, 加藤史郎

    2009.10 

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  • Recommendation for Stability Design of Steel Structures (Rev.2009)

    2009 

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  • 鋼構造設計規準ー許容応力度設計法ー

    木村衛, 小野徹郎, 五十嵐規矩夫 他

    日本建築学会  2005.9 

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    Responsible for pages:19-20, 38-42, 68-72, 124-130   Language:Japanese   Book type:Scholarly book

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MISC

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Presentations

  • 開口補剛した有孔H形鋼梁の塑性変形能力に関する研究 (その1 開口補剛形式の提案とその基本的概念)

    日本建築学会大会学術講演会  2000 

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  • モーメント勾配を考慮した鋼構造部材の塑性変形能力評価

    日本建築学会大会学術講演会  2000 

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  • 高力ボルト摩擦接合されたH形鋼梁継手部の耐力と変形性状に関する研究 (その1 実験概要および基本性状)

    日本建築学会大会学術講演会  2000 

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  • 開口補剛した有孔H形鋼梁の塑性変形能力に関する研究 (その2 補剛形式の具現化とその効果)

    日本建築学会大会学術講演会  2000 

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  • 高力ボルト摩擦接合されたH形鋼梁継手部の耐力と変形性状に関する研究 (その2 すべり耐力評価)

    日本建築学会大会学術講演会  2000 

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  • せん断パネルを配置した偏心トラス梁の力学性状に関する研究 (その1 実験概要及び基本性状)

    日本建築学会大会学術講演会  1999 

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  • 引張側フランジに補剛材を設けたH形鋼梁の横座屈性状に関する研究

    日本建築学会大会学術講演会  1999 

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  • せん断パネルを配置した偏心トラス梁の力学性状に関する研究 (その3 繰返し性状)

    日本建築学会大会学術講演会  1999 

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  • せん断パネルを配置した偏心トラス梁の力学性状に関する研究 (その2 せん断パネルを配置することの効果)

    日本建築学会大会学術講演会  1999 

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  • コンクリート充填円形鋼管分岐継手部の力学性状に関する研究 (その1 分岐継手部の形状の影響について)

    日本建築学会大会学術講演会  1999 

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  • 角形断面柱に接合される高張力鋼梁の塑性変形性能に関する研究 (その3. 梁断面形状が塑性変形能力に与える影響)

    日本建築学会大会学術講演会  1999 

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  • THE INFLUENCE OF MATERIAL PROPERTIES ON THE DEFORMATION CAPACITY OF STEEL MEMBERS

    1999 

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  • :コンクリート充填円形鋼管分岐継手部の力学性状に関する研究 (その2 分岐継手部の応力状態を考慮した耐力評価)

    日本建築学会大会学術講演会  1999 

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  • 偏心接合部にせん断パネルを挿入したトラス平板の繰返し挙動に関する研究

    日本建築学会大会学術講演会  2000 

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  • THE INFLUENCE OF MATERIAL PROPERTIES ON THE DEFORMATION CAPACITY OF STEEL MEMBERS

    1999 

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  • せん断応力の影響が大きなH形鋼梁の局部座屈挙動と塑性変形性状

    日本建築学会大会学術講演梗概集  1998 

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  • ウェブ幅厚比の大きな590N/mm2級高張力鋼梁の塑性変形能力に関する研究(その2 塑性変形能力評価と材料特性が塑性変形能力に及ぼす影響)

    日本建築学会大会学術講演梗概集  1998 

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  • ウェブ幅厚比の大きな590N/mm2級高張力鋼梁の塑性変形能力に関する研究(その1 局部座屈発生性状)

    日本建築学会大会学術講演梗概集  1998 

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  • 鋼構造部材の塑性変形能力に及ぼす鋼素材特性の影響(その2 塑性変形能力評価因子の抽出方法と塑性変形能力評価)

    日本建築学会大会学術講演梗概集  1998 

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  • 鋼構造部材の塑性変形能力に及ぼす鋼素材特性の影響(その1 塑性化領域における鋼素材特性の検討)

    日本建築学会大会学術講演梗概集  1998 

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  • 円形鋼管トラス分岐継手部の性状について(その2 コンクリート充填タイプの管径比、径厚比、軸力の影響)

    日本建築学会大会学術講演梗概集  1998 

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  • 円形鋼管トラス分岐継手部の性状について(その1 主管の充填コンクリートの効果)

    日本建築学会大会学術講演梗概集  1998 

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  • かぶりなし十字型鉄骨コンクリート柱部材の剛性及び耐力に関する研究(その2. 端部のみにコンクリートを打設した場合)

    日本建築学会大会学術講演梗概集  1998 

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  • かぶりなし十字型鉄骨コンクリート柱部材の剛性及び耐力に関する研究(その1. スチフナ位置による影響)

    日本建築学会大会学術講演梗概集  1998 

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  • 鋼素材特性を反映させた鋼構造部材の塑性変形能力評価に関する研究

    日本建築学会大会学術講演会  1999 

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  • ウエブ幅厚比の大きな高張力鋼梁の塑性変形性状に関する研究(その1 研究目的及び概要)

    日本建築学会大会学術講演梗概集  1997 

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  • スカラップを有する高張力鋼梁の塑性変形能力に関する研究(その2. 塑性変形能力に及ぼす断面形状の影響)

    日本建築学会大会学術講演梗概集  1997 

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  • ウエブ幅厚比の大きな高張力鋼梁の塑性変形性状に関する研究(その3 崩壊形式と塑性変形能力評価)

    日本建築学会大会学術講演梗概集  1997 

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  • ウエブ幅厚比の大きな高張力鋼梁の塑性変形性状に関する研究(その2 梁の基本的性状に関する実験的研究)

    日本建築学会大会学術講演梗概集  1997 

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  • フープ筋を粗密に配筋した RC 柱の偏心圧縮実験(略水平割れ誘導による RC 柱靭性改善の試み その3)

    日本建築学会大会学術講演梗概集  1997 

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  • 外周ブロックを用いた鉄筋コンクリート柱の偏心圧縮実験(略水平割れ誘導による RC 柱靭性改善の試み その2)

    日本建築学会大会学術講演梗概集  1997 

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  • EVALUATION OF THE PLASTIC DEFORMATION CAPACITY MODIFIED BY THE EFFECT OF DUCTILE FRACTURE

    1997 

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  • EVALUATION OF THE PLASTIC DEFORMATION CAPACITY MODIFIED BY THE EFFECT OF DUCTILE FRACTURE

    1997 

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  • 角形断面柱に接合される高張力鋼梁の塑性変形性能に関する研究(その2. 構成板要素板厚が塑性変形能力に与える影響)

    日本建築学会大会学術講演梗概集  1998 

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  • 角形断面柱に接合される高張力鋼梁の塑性変形性能に関する研究(その1. 実験及び崩壊形式)

    日本建築学会大会学術講演梗概集  1998 

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  • 骨組の水平剛性が骨組内柱材の座屈長さに与える影響

    日本建築学会大会学術講演梗概集  1995 

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  • 降伏比の異なる 590 N/mm2級高張力鋼梁の崩壊形式と塑性変形能力評価(その 2 延性破壊による崩壊)

    日本建築学会大会学術講演梗概集  1996 

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  • 降伏比の異なる 590 N/mm2級高張力鋼梁の崩壊形式と塑性変形能力評価(その 1 座屈による崩壊)

    日本建築学会大会学術講演梗概集  1996 

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  • 降伏比の異なる 590 N/mm2級高張力鋼部材の繰返し履歴挙動とエネルギー吸収能力(その 2 梁)

    日本建築学会大会学術講演梗概集  1996 

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  • 降伏比の異なる 590 N/mm2級高張力鋼部材の繰返し履歴挙動とエネルギー吸収能力(その 1 材料特性)

    日本建築学会大会学術講演梗概集  1996 

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  • 純圧縮を受けるコンクリート充填円形鋼管短柱の座屈および座屈後挙動

    日本建築学会大会学術講演梗概集  1996 

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  • 十字形鉄骨を用いたかぶりなし鉄骨コンクリート柱部材の変形能力に関する研究 圧縮曲げせん断を受ける場合

    日本建築学会大会学術講演梗概集  1996 

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  • A STUDY ON PLASTIC DEFORMATION CAPACITY OF H-SHAPED HYBRID BEAM-COLUMNS

    1996 

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  • A STUDY ON PLASTIC DEFORMATION CAPACITY OF H-SHAPED HYBRID BEAM-COLUMNS

    1996 

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  • スカラップを有する高張力鋼梁の塑性変形能力に関する研究(その1. 実験概要及び崩壊形式)

    日本建築学会大会学術講演梗概集  1997 

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  • せん断応力度の影響を考慮したH形鋼梁の塑性変形能力評価 (その1 ウェブ幅厚比の大きな梁の塑性変形性状)

    日本建築学会大会学術講演会  2000 

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  • 薄板鉄鋼材料を用いた鋼構造建築物の可能性の探求と開発 第3期21世紀鋼構造フォーラムの中間報告

    鋼構造シンポジウム2006  2006 

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  • 正方形薄板のせん断座屈後繰返し挙動に関する研究 その1 載荷履歴の影響

    日本建築学会大会学術講演会  2006 

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  • 正方形薄板のせん断座屈後繰返し挙動に関する研究 その2 境界条件の影響

    日本建築学会大会学術講演会  2006 

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  • ウェブ薄板のせん断座屈後繰返し挙動に関する研究 その4 ウェブ薄板の大変形履歴後挙動

    日本建築学会大会学術講演会  2006 

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  • 繰返しせん断力を受ける金属系薄板の履歴挙動の安定性

    日本建築学会大会学術講演会  2006 

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  • H形鋼部材構成板要素の弾塑性座屈耐力算定法

    日本建築学会大会学術講演会  2006 

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  • ウェブ薄板のせん断座屈後繰返し挙動に関する研究 その3 繰返し履歴曲線のモデル化

    日本建築学会大会学術講演会  2006 

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  • Effect of Position of Neutral Axis to Elastic Buckling Strength of Plates under Bending Shear

    Journal of Constructional Steel  2006 

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  • Post-buckling behavior of thin web plate under cyclic shear loading

    STESSA 2006 Behaviour of Steel Structures in Seisemic Areas  2006 

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  • A Method for Evaluation of Elastic Buckling Strength of H Shaped Steel Member under Bending-Shear

    Journal of Constructional Steel  2006 

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  • ウェブ薄板のせん断座屈後繰り返し挙動に関する研究 その2 繰り返し後耐力に関する考察

    日本建築学会大会学術講演会  2005 

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  • 千鳥配置高力ボルト摩擦接合部のすべり耐力低下要因とすべり耐力予測に関する研究 千鳥配置高力ボルト摩擦接合部のすべり挙動に関する研究 その2

    日本建築学会大会学術講演会  2005 

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  • せん断力を受ける金属系薄板の張力場形成後繰返し挙動に関する一考察

    日本建築学会大会学術講演会  2005 

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  • ウェブ薄板のせん断座屈後繰返し挙動に関する研究 その1 正方形ウェブ薄板のせん断座屈後挙動

    日本建築学会大会学術講演会  2005 

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  • 角形鋼管柱梁接合部パネルの力学的挙動および耐力推定式に関する研究 その3 繰返し履歴曲線モデル

    日本建築学会大会学術講演会  2005 

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  • 不均等曲げを受けるH形鋼構成板要素の弾性座屈耐力に関する研究

    日本建築学会大会学術講演会  2005 

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  • 角形鋼管柱梁接合部パネルの力学的挙動および耐力推定式に関する研究 その1 有限要素法数値解析による力学的挙動の確認

    日本建築学会大会学術講演会  2005 

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  • 角形鋼管柱梁接合部パネルの力学的挙動および耐力推定式に関する研究 その2 載荷実験による力学的挙動の確認

    日本建築学会大会学術講演会  2005 

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  • 曲げせん断力を受けるH形鋼構成板要素の弾性座屈耐力算定法

    鋼構造年次論文報告集  2006 

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  • せん断曲げを受ける平板の弾性座屈耐力に中立軸位置が及ぼす影響

    鋼構造年次論文報告集  2006 

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  • H形鋼柱梁接合部パネルの力学的挙動および耐力推定式に関する研究 その2 耐力推定式

    日本建築学会大会学術講演会  2003 

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  • A Method for Evaluation Buckling Strength of Plate under Bending-Shear and Axial Force

    Coupled Instabilities in Metal Structures, CIMS2004  2004 

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  • H形鋼柱梁接合部パネルの力学的挙動および耐力推定式に関する研究 その1 パネル周辺要素の影響

    日本建築学会大会学術講演会  2003 

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  • 角形鋼管柱梁接合部パネルの力学性状に関する研究

    日本建築学会大会学術講演会  2004 

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  • 千鳥配置高力ボルト摩擦接合部のすべり挙動に関する研究

    日本建築学会大会学術講演会  2004 

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  • 正方形ウェブ薄板のせん断座屈後挙動に関する研究 その2 繰返し載荷時の座屈後挙動

    日本建築学会大会学術講演会  2004 

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  • せん断曲げを受けるウェブの弾性座屈耐力に及ぼすフランジねじり剛性の影響

    日本建築学会大会学術講演会  2004 

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  • 材料非線形領域における正方形薄板のせん断座屈挙動及び座屈後耐力

    日本建築学会大会学術講演会  2004 

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  • 正方形ウェブ薄板のせん断座屈後挙動に関する研究 その1 一方向載荷時の大変形挙動

    日本建築学会大会学術講演会  2004 

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  • A Method for Evaluation Buckling Strength of Plate under Bending-Shear and Axial Force

    Coupled Instabilities in Metal Structures, CIMS2004  2004 

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  • アルミニウム合金の機械的性質に関する基礎的研究 その2 せん断載荷

    日本建築学会大会学術講演会  2003 

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  • A STUDY ON SHARE FORCE TRANSMISSION MECHANISM OF H-SHAPED STEEL BEAMS WITH WEB-OPENING

    2002 

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  • せん断崩壊型H形鋼部材の塑性変形能力改善に関する研究 その4 ステンレス鋼を用いた場合

    日本建築学会大会学術講演会  2003 

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  • アルミニウム合金の機械的性質に関する基礎的研究 その1 単純引張載荷

    日本建築学会大会学術講演会  2003 

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  • せん断崩壊型H形鋼部材の塑性変形能力改善に関する研究 その2 繰返し載荷実験

    日本建築学会大会学術講演会  2003 

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  • せん断崩壊型H形鋼部材の塑性変形能力改善に関する研究 その3 補強効果

    日本建築学会大会学術講演会  2003 

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  • 逆対称曲げせん断力を受ける周辺固定支持平板の弾性座屈耐力評価

    日本建築学会大会学術講演会  2003 

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  • せん断崩壊型H形鋼部材の塑性変形能力改善に関する研究 その1 せん断パネルの座屈後変形

    日本建築学会大会学術講演会  2003 

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  • 高力ボルト摩擦接合部のすべり挙動とすべり耐力予測に関する研究 その1 高力ボルト摩擦接合部のすべり挙動の基本性状

    日本建築学会大会学術講演会  2003 

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  • 高力ボルト摩擦接合部のすべり挙動とすべり耐力予測に関する研究 その2 ボルト張力の低下性状のモデル化とすべり耐力の算定

    日本建築学会大会学術講演会  2003 

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  • 中立軸補強された境界梁の塑性変形能力 境界梁のせん断補強 その2

    日本建築学会大会学術講演会  2002 

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  • H形鋼梁の塑性変形性状に及ぼす端部境界条件及び応力状態の影響 その2 変形性状に影響を与える要因と塑性変形能力評価

    日本建築学会大会学術講演会  2002 

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  • 境界梁における中立軸補強効果の確認実験 境界梁のせん断補強 その1

    日本建築学会大会学術講演会  2002 

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  • 円形開口を有するH形鋼梁のせん断力伝達機構

    日本建築学会大会学術講演会  2002 

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  • H形鋼梁の塑性変形性状に及ぼす端部境界条件及び応力状態の影響 その1 端部フランジ補強梁の基本性状

    日本建築学会大会学術講演会  2002 

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  • H形鋼柱梁接合部パネルの繰返し載荷実験 その1 繰返し載荷実験

    日本建築学会大会学術講演会  2002 

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  • H形鋼柱梁接合部パネルの繰返し載荷実験 その2 実験式の導出

    日本建築学会大会学術講演会  2002 

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  • 高摩擦係数板を用いた高力ボルト摩擦接合部の力学性状に関する研究

    日本建築学会大会学術講演会  2002 

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  • 繰返し荷重を受ける高力ボルト摩擦接合部のすべり挙動と耐力評価 高力ボルト摩擦接合部のすべり挙動に関する研究 その2

    日本建築学会大会学術講演会  2002 

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  • A STUDY ON SHARE FORCE TRANSMISSION MECHANISM OF H-SHAPED STEEL BEAMS WITH WEB-OPENING

    2002 

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  • 偏心曲げを受ける鋼梁の横座屈性状 ―その3 換算細長比を用いた横座屈耐力評価

    日本建築学会大会学術講演会  2001 

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  • 偏心曲げを受ける鋼梁の横座屈性状 ―その2 二重ウェブ形鋼梁の横座屈性状

    日本建築学会大会学術講演会  2001 

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  • せん断曲げを受けるH形鋼梁の最大耐力決定要因と塑性変形能力に関する研究 ―その2 塑性変形能力評価

    日本建築学会大会学術講演会  2001 

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  • せん断曲げを受けるH形鋼梁の最大耐力決定要因と塑性変形能力に関する研究 ―その1 最大耐力決定要因

    日本建築学会大会学術講演会  2001 

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  • H形鋼柱梁接合部パネルの力学性状に関する研究 ―その1 基本性状

    日本建築学会大会学術講演会  2001 

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  • H形鋼梁ウェブ板要素のせん断座屈挙動に関する研究

    日本建築学会大会学術講演会  2001 

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  • 高力ボルト摩擦接合部のすべり挙動に関する研究

    日本建築学会大会学術講演会  2001 

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  • H形鋼柱梁接合部パネルの力学性状に関する研究 ―その2 変形・崩壊性状

    日本建築学会大会学術講演会  2001 

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  • トラス型補強による境界梁の塑性変形能力 境界梁のせん断補強 その3

    日本建築学会大会学術講演会  2002 

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  • 中立軸補強によるウェブ幅厚比の大きなH形鋼梁の塑性変形性能

    日本建築学会大会学術講演会  2002 

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  • 繰返し荷重を受けるウェブ幅厚比の大きなH形断面梁の力学特性 その1 新たな幅厚比制限値及び区分の提案

    日本建築学会大会学術講演梗概集  2009 

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  • 矩形形状を有する波形鋼板の面内せん断剛性 その2 境界条件が及ぼす影響

    日本建築学会大会学術講演梗概集  2009 

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  • 面内圧縮力を受ける鋼板サンドイッチパネルの座屈挙動

    日本建築学会大会学術講演梗概集  2009 

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  • 面内せん断力を受ける波形鋼板パネルの端部崩壊挙動 その2 剛性および耐力の評価

    日本建築学会大会学術講演梗概集  2009 

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  • 矩形形状を有する波形鋼板の面内せん断剛性 その1 解析概要及び基本的性質

    日本建築学会大会学術講演梗概集  2009 

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  • Hysteretic Behavior of Thin Web Plate under Cyclic Bending-Shear Loading

    Sixth International Conference on Urban Earthquake Engineering  2009 

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  • 面内せん断力を受ける波形鋼板パネルの端部崩壊挙動 その1 パネルせん断試験

    日本建築学会大会学術講演梗概集  2009 

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  • Plastic Deformation Capacity and Post Buckling Behavior of H窶鉄haped Beam with Large Depth-Thickness Ratio under Cyclic Loading

    2010 

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  • Hysteretic Behavior of Thin Web Plate under Cyclic Bending-Shear Loading

    Sixth International Conference on Urban Earthquake Engineering  2009 

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  • CYCLIC BEHAVIOR AND COLLAPSE MODE OF HIGH STRENGTH STEEL H-SECTION BEAMS

    JOINT CONFERENCE PROCEEDINGS 7th International Conference on Urban Earthquake Engineering (7CUEE) & 5th International Conference on Earthquake Engineering (5ICEE)  2010 

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  • Elastic Buckling Strength of Rectangular Corrugate Plates under Shear Loading

    2008 

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  • Coupled Buckling Strength of H-Shaped Beams under Bending- Shear

    2008 

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  • Hysteretic Characteristic of Thin Web Plate under Cyclic Bending-Shear Loading

    Fifth International Conference on Thin-Walled Structures  2008 

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  • Evaluation of Elastic Local Buckling Strength of H-Shaped Beam under Bending-Shear

    Fifth International Conference on Thin-Walled Structures  2008 

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  • Experimental Study on Estimation of Ds Factor for Hybrid Structures Composed with Steel Frame and Steel House Panel

    AIJ Tokai Chapter Architectural Research Meeting  2008 

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  • Effect on the Position of Neutral Axis to Elastic Buckling Strength of Plates under Bending Shear

    Journal of Structural Engineering  2008 

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  • 高強度鋼を用いたH形断面梁の繰返し性状 その2 構成板要素薄板化の可能性

    日本建築学会大会学術講演梗概集  2009 

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  • せん断力を受ける平板 -部分管体の捩り耐力問題

    日本建築学会大会学術講演梗概集  2009 

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  • 繰返し荷重を受けるウェブ幅厚比の大きなH形断面梁の力学特性 その2 繰返し履歴挙動と劣化性状に関する考察

    日本建築学会大会学術講演梗概集  2009 

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  • 高強度鋼を用いたH形断面梁の繰返し性状 その1 高強度鋼使用の可能性

    日本建築学会大会学術講演梗概集  2009 

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  • 矩形形状を有する波形鋼板のせん断弾性座屈耐力

    日本建築学会学術講演梗概集  2008 

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  • 面内圧縮力を受ける鋼板サンドイッチパネルの座屈耐力

    日本建築学会学術講演梗概集  2008 

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  • 繰返し荷重を受けるせん断座屈後ウェブ薄板の大変形性能

    日本建築学会学術講演梗概集  2008 

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  • Coupled Buckling Strength of H-Shaped Beams under Bending- Shear

    2008 

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  • 連成局部座屈を考慮したH形断面梁部材構成板要素の幅厚比制限算定法

    日本建築学会学術講演梗概集  2008 

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  • Evaluation of Elastic Local Buckling Strength of H-Shaped Beam under Bending-Shear

    Fifth International Conference on Thin-Walled Structures  2008 

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  • Elastic Buckling Strength of Rectangular Corrugate Plates under Shear Loading

    2008 

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  • 中立軸位置を考慮した曲げせん断力を受ける平板の弾性座屈耐力算定

    構造工学シンポジウム  2008 

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  • Hysteretic Characteristic of Thin Web Plate under Cyclic Bending-Shear Loading

    Fifth International Conference on Thin-Walled Structures  2008 

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  • 骨組構造とスチールハウス耐力壁とのハイブリッド構造のDs値に関する実験

    日本建築学会東海支部研究報告書  2008 

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  • 曲げせん断力を受けるH形断面梁部材の連成座屈に関する研究

    鋼構造年次論文報告集  2007 

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  • Post-buckling behavior of thin web plate under cyclic shear loading

    STESSA 2006 Behaviour of Steel Structures in Seisemic Areas  2006 

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    Presentation type:Poster presentation  

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  • Coupled Buckling Strength of H-Shaped Beams under Bending and Shear

    Journal of Constructional Steel  2007 

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  • A Method for Evaluation of Elastic Buckling Strength of H Shaped Steel Member under Shear Bending

    Forth International Conference on Urban Earthquake Engineering  2007 

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  • 異なる復元力特性が混在するハイブリッド構造のDs値 その3 地震応答解析に基づくDs値の評価

    日本建築学会学術講演梗概集  2008 

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  • A Method for Evaluation of Elastic Buckling Strength of H Shaped Steel Member under Shear Bending

    Forth International Conference on Urban Earthquake Engineering  2007 

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  • 異なる復元力特性が混在するハイブリッド構造のDs値 その1 ハイブリッド構造の静載荷実験

    日本建築学会学術講演梗概集  2008 

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  • 異なる復元力特性が混在するハイブリッド構造のDs値 その2 ハイブリッド構造の履歴特性と既存のDs評価式の特性と修正BCJ評価式の提案

    日本建築学会学術講演梗概集  2008 

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  • 波形鋼板のせん断座屈耐力評価法

    日本建築学会学術講演梗概集  2008 

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  • 水平補剛剛性を考慮した骨組内柱材の座屈解析

    日本建築学会学術講演梗概集  2008 

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  • 中間材を導入した鋼管トラス梁の構造特性に関する研究

    日本建築学会大会学術講演梗概集  1993 

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  • 異種鋼材を用いたH形鋼柱部材の塑性変形性状に関する研究

    日本建築学会大会学術講演梗概集  1993 

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  • フランジを局部座屈補剛した鋼構造柱部材の塑性変形性状に関する研究

    日本建築学会大会学術講演梗概集  1993 

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  • ウェブ補強したH型鋼梁部材の塑性変形性状に関する研究

    日本建築学会大会学術講演梗概集  1993 

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  • 異種鋼材を用いたH形鋼柱部材の塑性変形性状に関する研究:その1 柱部材載荷実験

    日本建築学会大会学術講演梗概集  1994 

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  • 中立軸上に高張力鋼板を添接したH形鋼柱部材の塑性変形性状

    日本建築学会大会学術講演梗概集  1994 

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  • 降伏比が異なる高張力鋼梁の塑性変形能力:その1基本的性状

    日本建築学会大会学術講演梗概集  1995 

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  • 異種鋼材を用いたH形鋼柱部材の塑性変形性状に関する研究:その2 塑性変形性能評価

    日本建築学会大会学術講演梗概集  1994 

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  • 局部座屈及び破断の相互効果で決定づけられる高張力鋼梁の塑性変形能力

    日本建築学会大会学術講演梗概集  1995 

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  • 降伏比が異なる高張力鋼梁の塑性変形能力:その2塑性変形能力評価

    日本建築学会大会学術講演梗概集  1995 

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  • Experimental and Theoretical Study of a Single Layer Reticulated Dome

    1991 

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  • 高降伏点鋼はり部材の塑性変形性能改善に関する研究

    日本建築学会大会学術講演梗概集  1992 

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  • Experimental and Theoretical Study of a Single Layer Reticulated Dome

    1991 

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  • 中間材を導入した鋼管トラス梁の塑性変形能力に関する実験研究

    日本建築学会大会学術講演梗概集  1992 

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  • H形断面はり部材の横座屈耐力向上に関する研究

    日本建築学会大会学術講演梗概集  1992 

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  • 鉄骨はり部材の塑性変形性能改善に関する研究:その2解析

    日本建築学会大会学術講演梗概集  1992 

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  • 鉄骨はり部材の塑性変形性能改善に関する研究:その1実験

    日本建築学会大会学術講演梗概集  1992 

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  • A STUDY ON LOCAL BUCKLING BEHAVIOR OF HYBRID BEAMS

    1992 

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  • A STUDY ON LOCAL BUCKLING BEHAVIOR OF HYBRID BEAMS

    1992 

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  • ウェブ補強したH形鋼柱部材の塑性変形性状に関する研究

    日本建築学会大会学術講演梗概集  1993 

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  • 剛接合単層トラスドームの座屈実験

    日本建築学会大会学術講演梗概集  1990 

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  • Adaptive Grid Method による有限要素流れ解析

    日本建築学会大会学術講演梗概集  1989 

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  • 鋼構造部材を構成する板要素の局部座屈に対する相互作用に関する研究:その1 概要および短柱実験

    日本建築学会大会学術講演梗概集  1991 

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  • 剛接合単層トラスドームの弾塑性座屈解析

    日本建築学会大会学術講演梗概集  1990 

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  • 鋼構造部材を構成する板要素の局部座屈に対する相互作用に関する研究:その3 数値解析による一般性状

    日本建築学会大会学術講演梗概集  1991 

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  • 鋼構造部材を構成する板要素の局部座屈に対する相互作用に関する研究:その2 はり曲げ実験

    日本建築学会大会学術講演梗概集  1991 

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  • Plastic Deformation Capacity and Post Buckling Behavior of H窶鉄haped Beam with Large Depth-Thickness Ratio under Cyclic Loading

    2010 

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  • CYCLIC BEHAVIOR AND COLLAPSE MODE OF HIGH STRENGTH STEEL H-SECTION BEAMS

    JOINT CONFERENCE PROCEEDINGS 7th International Conference on Urban Earthquake Engineering (7CUEE) & 5th International Conference on Earthquake Engineering (5ICEE)  2010 

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  • A Study on Influence of Shear Stress on Plate Coupled Instbility and Plastic Deformation Capacity of H-shaped Steel Beams

    2000 

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  • A Study on Influence of Shear Stress on Plate Coupled Instbility and Plastic Deformation Capacity of H-shaped Steel Beams

    2000 

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  • ウェブ片面に添接された補強の有効性 ―鋼梁の開口部補強構造 その3

    日本建築学会大会学術講演会  2001 

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  • 開口梁のせん断力伝達機構 ―鋼梁の開口部補強構造 その2

    日本建築学会大会学術講演会  2001 

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  • 実施設計に伴う補強構造の確認実験 ―鋼梁の開口部補強構造 その5

    日本建築学会大会学術講演会  2001 

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  • 様々な開口に対する補強の可能性 ―鋼梁の開口部補強 その4

    日本建築学会大会学術講演会  2001 

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  • 中立軸補強によるH形鋼梁の塑性変形性能の改善 ―H形鋼梁に対する中立軸補強 その2

    日本建築学会大会学術講演会  2001 

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  • H形鋼梁に対する中立軸補強

    日本建築学会大会学術講演会  2001 

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  • 偏心曲げを受ける鋼梁の横座屈性状 ―その1 H形鋼梁の横座屈性状

    日本建築学会大会学術講演会  2001 

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  • 中立軸補強の有効性に関する確認実験 ―H形鋼梁に対する中立軸補強 その3

    日本建築学会大会学術講演会  2001 

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  • 鋼材の引張性状に及ぼす断面拘束の影響に関する基礎的研究

    日本建築学会大会学術講演会  2000 

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  • ウェブに鋼板を添接したウェブ幅厚比の大きなH形鋼梁の塑性変形性能に関する研究 (その2 補強鋼板をウェブの片面に添接した場合の影響)

    日本建築学会大会学術講演会  2000 

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  • ウェブに鋼板を添接したウェブ幅厚比の大きなH形鋼梁の塑性変形性能に関する研究 (その1 ウェブ補強の効果)

    日本建築学会大会学術講演会  2000 

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  • せん断応力度の影響を考慮したH形鋼梁の塑性変形能力評価 (その2 塑性変形能力評価)

    日本建築学会大会学術講演会  2000 

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Industrial property rights

  • せん断パネル、形鋼、及び耐力壁

    五十嵐規矩夫

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    Applicant:国立大学法人東京工業大学

    Application no:特願2008-146881  Date applied:2008.6

    Announcement no:特開2009-293254  Date announced:2009.12

    J-GLOBAL

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  • 金属薄板を備えたエネルギー吸収部材及びその製造方法

    五十嵐 規矩夫

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    Applicant:国立大学法人東京工業大学

    Application no:特願2005-236654  Date applied:2005.8

    Announcement no:特開2007-051452  Date announced:2007.3

    Patent/Registration no:特許第4649611号  Date registered:2010.12 

    J-GLOBAL

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  • 金属薄板を備えたエネルギー吸収部材及びその製造方法

    五十嵐 規矩夫

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    Applicant:国立大学法人東京工業大学

    Application no:特願2005-236654  Date applied:2005.8

    Announcement no:特開2007-051452  Date announced:2007.3

    J-GLOBAL

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Works

  • 高強度鋼の局所的塑性化に関する共同研究

    2009 - 2010

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    Work type:Artistic work  

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  • 新構造建築物の耐震性能評価に関する研究

    2007 - 2008

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    Work type:Artistic work  

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  • 金属系極薄板を備えた繰返し履歴安定化エネルギー吸収部材の開発

    2005

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    Work type:Artistic work  

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Awards

  • 東工大教育賞 最優秀賞

    2018.3   東京工業大学   高大連携サマーチャレンジによる高大連携教育の企画・構築

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  • 手島精一記念研究賞(藤野志郎賞)

    2010  

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    Country:Japan

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  • Tejima Research Award

    2010  

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  • 日本鋼構造協会論文賞

    2008  

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    Country:Japan

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  • 東工大工系創成的研究賞

    2008  

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    Country:Japan

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  • 日本建築学会奨励賞

    2005  

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    Country:Japan

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Research Projects

  • Exploration of steel structural joints utilising next-generation adhesives to avoid brittle fracture

    Grant number:25K21688  2025.6 - 2029.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Challenging Research (Pioneering)

    Kazuya Mitsui, Kikuo Ikarashi, Atsushi Sato, Lettieri Annarosa

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    Grant amount:\25740000 ( Direct Cost: \19800000 、 Indirect Cost:\5940000 )

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  • 鋼構造部材の強振動繰返し履歴下での保有性能解明と終局性能統合型評価手法の確立

    Grant number:24H00347  2024.4 - 2029.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    五十嵐 規矩夫, 三井 和也

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    Grant amount:\47970000 ( Direct Cost: \36900000 、 Indirect Cost:\11070000 )

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  • 鋼構造部材の安定性評価手法の統一化およびその応用としての合理的設計手法の確立

    Grant number:20H02294  2020.4 - 2024.3

    日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

    五十嵐 規矩夫, 三井 和也

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    Grant amount:\17550000 ( Direct Cost: \13500000 、 Indirect Cost:\4050000 )

    本研究は,鋼構造に対する設計行為の明確化および合理化に繋げる鋼構造の設計体系の高度化を図るために,その設計手法が連続かつ統一的となることを目指し,鋼構造部材の使用条件範囲を区分,設定,限定しない統一的な安定性評価手法を構築することを目的としている.具体的には,(1)主要構造部の部材として使用されていない薄い板厚の範囲における部材挙動およびその構造性能の解明,(2)鋼構造部材の軽量化,大断面化に伴う断面形状および補剛等を考慮した周辺部材の簡略化,(3)現行規準,指針における仕様,使用範囲から逸脱している部材の詳細な部材性能評価であり,研究全体は5つのサブテーマから構成されている.
    以上の目的のため,2年目の令和3年度は,以下のサブテーマ「2)圧縮力および曲げを受ける組立部材の安定性評価」,「3)薄板H形断面部材の安定性評価の高度化と接合部への展開」を主に検討し,令和2年度の検討で,新規かつ詳細な検討が必要と判断したサブテーマ「1)圧縮力および引張力を受ける非対称断面部材の弾塑性性能評価」の一部についても継続検討した.
    サブテーマ2)では,様々な接合ピッチを有する薄板非対称断面組立引張材に対する新たな合理的設計式を提案した.圧縮および曲げを受ける組立材の挙動については,その基本的な特性に対する検討は終了しているが,サブテーマ1)の知見および接合要素のモデル化等の詳細な検討が必要と判断し,予定の研究期間を延長して行なうこととした.なお,サブテーマ1)では,薄板非対称断面部材の境界条件に応じた座屈モードの解明および終局耐力評価を行なった.サブテーマ3)では,柱梁接合部および近傍部位の薄板化の可能性とその安定条件を踏まえた設計法に向けた検討を行った.さらに,サブテーマ「4)冷間成形角形鋼管部材の連成座屈不安定挙動の解明」に向けた基礎資料の収集と基礎的検討を開始した.

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  • Stability evaluation of thin plate steel structure members considering actual conditions and application-oriented design method

    Grant number:17H03338  2017.4 - 2020.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    Ikarashi Kikuo

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    Grant amount:\16380000 ( Direct Cost: \12600000 、 Indirect Cost:\3780000 )

    The purpose of this study is to evaluate the actual performance of thin plate steel structural members in the ultimate state and to establish a rational design method. In particular, the performance of steel structural members composed of thin plates depends on the buckling instability phenomenon. A new thin plate member design method was proposed to calculate the elastic buckling strength and the ultimate strength by grasping and clarifying its behavior.
    Furthermore, the relationship between the end shape, boundary conditions, and stiffening stiffener, which has a great influence on the instability of thin steel structural members, was shown. From the results, the rational design method considering the more rational development of thin steel structural members and the relation with surrounding members was shown.

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  • Evaluation of stability of lightweight steel sheet steel structure and its application to efficient shape and form development of earthquake resistant structure

    Grant number:26289189  2014.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    Ikarashi Kikuo, SATOU ATSUSHI, ISHIHARA TADASHI, TOMIOKA YOSHITO

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    Grant amount:\16380000 ( Direct Cost: \12600000 、 Indirect Cost:\3780000 )

    This study focuses primarily on corrugated steel plates, steel plate sandwich panels, and cold-formed channel section members to evaluate their stability and seismic performance.
    These evaluations confirmed the properties of the materials constituting the members, and specified the relationship of the material properties of the members with the structural properties. Performing theoretical analysis, numerical analysis, and loading test clarified the structural properties of the members according to boundary conditions, connection conditions, and loading conditions of the members. Moreover, a performance evaluation formula was derived that would contribute to rational design methods.
    A structural form by appropriately combining thin plate members was proposed and showed the future development and potential of the thin plate structure type through trial construction experiment.

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  • Investigation of steel structural members behavior under the sever earthquakes and the establishment of advanced buckling design

    Grant number:23360242  2011.4 - 2014.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    IKARASHI Kikuo, NISHIMURA Koshiro, WANG Tao

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    Grant amount:\19890000 ( Direct Cost: \15300000 、 Indirect Cost:\4590000 )

    Coupled instability behavior and the plastic deformation capacity of H-shaped steel beams under the cyclic load are cleared in this study.
    Buckling strength of the beam is cleared by theoretical analysis. And the cyclic loading tests are carried out. From these results, plastic deformation capacities of H-shaped steel beams which are collapsed by coupled buckling are estimated.
    And effective buckling bracing methods and shape of members are examined. Effectiveness of floor slab was also examined, and those compression buckling design methods are proposed.

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  • Development of light resisting wall and energy absorption element using the post-buckling behavior of thin metal panel

    Grant number:18560543  2006 - 2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    IKARASHI Kikuo

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    Grant amount:\4060000 ( Direct Cost: \3400000 、 Indirect Cost:\660000 )

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  • 金属系極薄板を備えた繰返し履歴安定化エネルギー吸収部材の開発

    Grant number:7700005016  2005

    科学技術振興機構  産学が連携した研究開発成果の展開/研究成果展開事業/地域事業/地域イノベーション創出総合支援事業/シーズ発掘試験

    五十嵐 規矩夫

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    金属系極薄板を備えた繰返し履歴安定エネルギー吸収部材の開発][本応募課題は,通常その使用が敬遠されている弾性座屈を伴うような金属系極薄板のせん断力作用下における繰返し履歴を安定化させる手法の確立とその手法を用いたエネルギー吸収部材を開発することである.具体的には,エネルギー吸収部材を構造物などに設置する前段階において,あらかじめ張力場を伴う大変形を経験させておくことで,構造物に設置後に想定している地震等の外乱による最大応答変位内では,エネルギー吸収部材に極めて安定した履歴特性を実現させることである.本発明方法により,弾性座屈を伴うような極薄板を備えたエネルギー吸収部材の繰返し途中における不安定な領域を消失させ,構造物に設置後は,極めて安定した履歴特性を実現させるものである。

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  • 薄板を用いた鋼構造物の可能性

    2003

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    Grant type:Competitive

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  • 鋼構造部材の塑性変形能力に及ぼす各種鋼素材が有する機械的性質の影響

    Grant number:09750649  1997 - 1998

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    五十嵐 規矩夫

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    Grant amount:\2100000 ( Direct Cost: \2100000 )

    鉄骨部材の塑性変形を確保するための規定の一つに幅厚比規定がある。本研究はこの幅厚比規定の中に盛り込まれているF値の適切な定義の仕方に対して考察を加えたものである。特に高張力鋼に対して適切なF値(以後,規定応力度)の定義法を確立することを目的とした。また鉄骨部材の塑性変形能力を決定づける鋼材の機械的性質の中で重要な要因は,降伏応力度にかぎるものではないく,特にひずみ硬化勾配,ひずみ硬化開始ひずみ等は部材の塑性変形能力に大きく影響を及ぼす要因であることに着目して研究を進めてきた。
    昨年度は590N/mm^2級高張力鋼を対象として簡単な数値解析及び載荷実験を行った。これらを通して通常塑性変形能力が期待できるとされている程度の幅厚比のフランジ板要素における局部座屈発生ひずみに対して考察を加え,材料の引張試験結果から得られる応力ひずみ関係を用いて規定応力度の定義法を決定した。ここで規定応力度は,申請者があらたに定義した材料定数であり,これにより実態ととしてに部材の塑性変形能力を簡便に評価されうる因子である。
    本年度は,昨年得られた規定応力度定義法を現在建築の分野で使用されている鋼材に対しても適応可能かどうかについて検討を加えた。まず400N/mm^2級から780N/mm^2級の現行使用されている鋼材の引張実験により,それらの材料特性の取りうる範囲を明らかにした。この材料特性の取りうる範囲を踏まえた上でで,載荷実験と数値解析により,現行使用されている鋼材の全種類にわたり本研究で提案する規定応力度を用いることで統一的に部材の塑性変形能力が評価できることを示した。さらに部材の塑性変形能力に影響を及ぼすであろう材料特性のうち,降伏応力度,降伏棚野長さ及びひずみ硬化勾配に注目し,パラメトリックな数値解析を通して,これらの影響を把握し塑性変形能力との関係を明らかにした。

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  • 局部座屈及び延性破壊の相互効果で決定づけられる高張力鋼梁の塑性変形能力評価

    Grant number:08750681  1996

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    五十嵐 規矩夫

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    Grant amount:\1100000 ( Direct Cost: \1100000 )

    本研究は,梁の最大耐力決定要因として圧縮フランジの局部座屈と,引張フランジの延性破壊の両方を対象とし,梁の塑性変形能力がこれらの要因の相互効果により決定されるものとして捉えた。ここでは降伏比の高い高張力鋼を用いた梁を対象として,各板要素の幅厚比、材長を変数とし,実験を通してこれらの要因が梁の崩壊性状に与える基本的な影響を確認した。
    具体的には,梁の塑性変形能力を高める上で構成板要素の幅厚比を小さくすることは必要であるが,特定の幅厚比以下のものを使用する場合には,梁の最終崩壊形式が引張フランジの延性破壊となることがあり,小さい幅厚比の梁ほど塑性変形能力は小さくなることを明らかにした。また,ウエブ幅厚比の小さい梁は,フランジの局部座屈を抑制する効果によりフランジの局部座屈が成長せず,最大耐力が引張フランジの延性破壊で決まる可能性があり,延性破壊に関してもウエブ,フランジの相互作用を考慮する必要があることを示した。さらにウエブ,フランジの幅厚比が共に等しい同断面の梁においても材長が短くなると最大耐力が延性破壊が決定される可能性があり,梁の崩壊形式及び塑性変形能力評価にはモーメント勾配も考慮する必要があることを示した。
    同時に数値解析を通して,局部座屈と延性破壊の相互効果で決定される高張力鋼梁の塑性変形能力をフランジ幅厚比で整理し、最大耐力の決定要因が局部座屈から延性破壊に遷移するフランジ幅厚比の境界は,ウエブ幅厚比,材長により変化し,ウエブ幅厚比が小さいほどフランジ幅厚比の境界値は大きくなり,モーメント勾配がきついほど同様に大きくなることを明らかにした。また,梁の塑性変形能力を局部座屈と延性破壊の両面から評価し構成板要素の幅厚比で整理することができることを示した。

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  • 高軸力を受ける異種鋼材を用いたH形鋼柱部材の塑性変形能力評価

    Grant number:07750654  1995

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    五十嵐 規矩夫

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    Grant amount:\1000000 ( Direct Cost: \1000000 )

    本研究は,フランジには軟鋼を使用したまま,ウエブに高張力鋼を使用したハイブリッド柱部材を提案し,その塑性変形性能について検討したものである。柱部材としてH形断面を用いた場合,断面中心に位置するウエブが軸力負担能力を十分に有しているならば,高軸力下においてもフランジのみならず,ウエブも曲げ応力を負担することができ,柱部材の有する曲げ耐力と塑性変形能力は耐震設計上十分な数値を確保する事が可能となる。本研究では,高張力鋼が高い降伏点を有するという特長を利用し,ウエブのみに高張力鋼を使用することで高軸力を保持し,十分な塑性変形能力を有し得る柱部材を提案した。
    ウエブに80キロ級の高張力鋼を使用したハイブリッド柱部材の載荷実験を通して,特に高軸力Fにおける力学性状について検討を加えた。試験体は,比較のために行った軟鋼柱部材も含めて9体であり,軸力比,ウエブ板厚をパラメータとした。その結果,ハイブリッド柱部材では高軸力下においても塑性中立軸がウエブ断面内に存在していることで,ウエブ断面内の圧縮応力分担領域が減少し,その結果として部材の最大耐力,塑性変形能力が向上することを明らかにした。さらにウエブの板厚をフランジ板厚よりも厚くした場合には,同時に連成局部座屈を抑えることができ,さらに部材の塑性変形能力が向上することを示した。
    また柱部材の最大耐力,塑性変形能力についての実験式を示した。この実験式は軸力と幅厚比の二乗の積(γ)で整理され,最大耐力は指数曲線的,塑性変形能力は直線的に表される。γの増加にともないハイブリッド柱部材と軟鋼柱部材との開きが大きくなり,ハイブリッド柱部材の有効性が顕著になることを明らかにした。さらに,このハイブリッド柱部材の塑性変形能力を,短柱圧縮試験より得られる構成板要素の局部座屈耐力を用いた塑性変形能力評価法を使用して,軸力比及び幅厚比の関係で整理した。

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  • Study on Behavior of Steel Members Joints

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    Grant type:Competitive

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  • Study on Plastic Deformation Behavior of Steel Members

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    Grant type:Competitive

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  • 鋼構造物の接合部性状に関する研究

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    Grant type:Competitive

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  • 鋼構造部材の塑性変形性状に関する研究

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    Grant type:Competitive

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  • 鋼構造部材の座屈性状に関する研究

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    Grant type:Competitive

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  • Study on Buckling Behavior of Steel Members

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    Grant type:Competitive

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