方钢管混凝土柱节点在单调加载作用下的非线性有限元分析

Nonlinear finite analysis of concrete-filled square steel tubular column joints under monotonic loading

基于方钢管混凝土柱-钢梁外加强环节点的低周反复荷载试验,在合理选择材料本构关系,破坏准则的基础上,采用通用有限元软件对方钢管混凝土柱-钢梁外加强环节点进行了单调加载作用下的受力性能分析.有限元分析得到的荷载-位移曲线与试验结果吻合较好.

Based on the low cyclic load experiments of steel beam to the concrete-filled square steel tubular column joints with outer stiffening ring, and under appropriate material stess-strain relations and failure criteria,the nonlinear finite element program ABAQUS was used to analyze the mechanical behavior of steel beam to the concrete-filled square steel tubular column joints with outer stiffening ring under monotonic loading. The load-displacement curves by finite element analysis show good agreement with those of the experiments.