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Elastoplastic Analysis of 3D Steel Frames with Semi-rigid Joints


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タイトル: Elastoplastic Analysis of 3D Steel Frames with Semi-rigid Joints
著者: Shugyo, Minoru
発行日: 2001年 7月
引用: 長崎大学工学部研究報告 Vol.31(57) p.61-70, 2001
抄録: A beam element for the analysis of elastoplastic large deformation of three-dimensional frames that have steel members with semi-rigid joints is presented. A plastic hinge type formulation was employed combining the modified incremental stiffness method^1,the updated Lagrangian formulation and numerical integration about the end sections of the element. The end sections of the element are discretized into small areas to estimate the plastic deformation of the element. The elastic and plastic deformations of the element are treated separately. The behavior of a semi-rigid joint is modeled as the element-end compliance. Considering the assumptions of the method, a four-element approximation for a member gives excellent results for a 3D analysis of semi-rigid and pin-connected steel frames as well as for rigid frames. The adequacy of the method is verified by comparing the results with experimental ones obtained by the author. Some examples are presented to demonstrate the accuracy and efficiency of the method.
キーワード: 3D steel frame / elastoplastic analysis / large deformation / semi-rigid joint / plastic hinge method / section warping
URI: http://hdl.handle.net/10069/5158
ISSN: 02860902
資料タイプ: Departmental Bulletin Paper
出現コレクション:第31巻 第57号

引用URI : http://hdl.handle.net/10069/5158

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