基于斜撑框架的暗支撑剪力墙弹塑性分析

Static Nonlinear Analysis of Short Pier Shear Wall With Concealed Bracings by Using Diagonal Bracing Frame Model

摘要: 建立了适用于带暗支撑剪力墙的斜撑框架计算模型,给出了该计算模型中各杆件的几何特性和参数的确定方法,推出了该计算模型的刚度矩阵,给出了各杆件非线性力-位移关系曲线的确定方法,对2片带暗支撑短肢剪力墙进行了计算分析,结果表明:该模型能较好地反应带暗支撑剪力墙的弹性和塑性阶段的受力反应,为使用框架分析程序进行暗支撑剪力墙的静力弹塑性分析打下基础.

Abstract: A diagonal bracing frame model was put forward to analyze short pier shear wall with concealed bracings. Geometry characteristic and a parameter defining method were developed for the model and the stiffness matrix was deduced. The reasonable force-displacement relationship of the frame element was selected. Push over analysis using the diagonal bracing frame model was carried out on two short pier shear walls and the calculating results indicate that the model is reasonable.