H形断面短柱の変形性能に及ぼす素材特性の影響に関する研究その1

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This paper describes the effects of material properties on the local buckling strength and deformation capacity of H-section stub-columns. The local buckling and the post local buckling behavior of H-section stub-columns are analyzed by the plastic hinge line analysis. The analytical variables are the width-thickness ratios of component plates and the material properties, such as tensile strength, strain at initial strain hardening and strain hardeninhg modulus. In this study, a modified complementary energy is proposed as an important parameter on the energy absorption capacity of the structural member. From the analytical results, the local buckling strength and the deformation capacity of the stub-column are influenced by the modified complementary energy index. In order to evaluate the deformation capacity of structural member, the material properties of the plastic range, such as a modified complementary energy, should be considered.
1998-01-30