鋼管橋脚模型の弾塑性挙動に関する実験的数値解析的研究

概要

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In order to investigate the effects of radius-thickness ratio and an axial force on the maximum lateral loading capacity and ductility of steel-pipe bridge piers, monotonic and cyclic loading tests for steel-pipe pier models are carried out under a compressive axial load. And also, in order to establish a rational analysis method for the pipe piers under lateral cyclic loading, applicability of three types of constitutive rules are investigated comparing with experimental results which are isotropic hardening rule, kinematic hardening rule, and three-surface model. From these studies, following results are obtained: 1) decreasing radius-thickness ratio and the axial load, nondimensional maximum lateral loading capacity can not be increased, but ductility can be improved, and 2) three-surface model is the best constitutive rule for the estimation of load-displacement hysteresis loop and local buckling mode among three rules considered here.
室蘭工業大学の論文
1999-11-30