個材の弾塑性座屈挙動を考慮したトラス梁に対する解析手法の提案

概要

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In analyzing a huge structure composed of truss girder, the method to substitute a beam element for truss girder is very useful. However, this method is not clear for the application to elastoplastic buckling behavior. We have already proposed a consistent and convenient method to analyze the elastoplastic buckling behavior of compression member. Then in this paper, we extend this method to truss girder and propose an analytical method for the effective continuous model which enables us to analyze the elastoplastic buckling behavior of truss girder involving chord member's buckling without constructing discrete model. The present method is formulated to satisfy the second law of thermodynamics. And we describe the validity of our method by comparing the numerical results of discrete model with ones of proposed continuous model.
社団法人日本建築学会の論文
2001-11-30