钢框架-组合剪力墙滞回性能非线性有限元分析

Non-linear FEM analysis of seismic behavior of steel frame-composite steel shear wall structure

以模型试验为基础,利用ABAQUS软件建立有限元分析模型,考虑影响结构抗震性能的3个因素:盖板数量、螺栓排布、节点转动刚度,对3个系列6个试件进行非线性有限元模拟和变参数分析。结果表明:对于结构承载力和滞回性能,盖板双侧布置优于单侧布置;紧密布置螺栓能够提高盖板的约束能力和结构的滞回性能;节点转动刚度不会明显影响结构的整体性能,钢框架-组合剪力墙宜采用低刚度的节点类型。

Based on model tests,a finite element method model was established by use of software ABAQUS. Non-linear finite element simulation and parameter analysis on 6 finite element models of 3 series were performed,in which three main influential factors,such as numbers of concrete cover plates,configuration pattern of bolts,and stiffness of joints,were considered. The results indicate that as for the bearing capacity and seismic behavior of the structure,the one with cover plates on both sides is better than the one with cover plates on one side; the intensive arrangement of bolts can promote the constraint ability of cover plates and the seismic performance; the rotational stiffness of joints has little influence on the overall performance of the structure; it is appropriate to use joints with lower stiffness for the steel frame-composite steel shear wall structure.