基于STM的简化拉压杆剪力墙单元模型  

Analytical model of predigested strut and tie model for shear-wall

作　　者：姚大庆[1] 孙景江[1] 

机构地区：[1]中国地震局工程力学研究所,哈尔滨150080

出　　处：《哈尔滨工业大学学报》2009年第9期210-213,共4页Journal of Harbin Institute of Technology

基　　金：云南省"十五"重点项目"昆明高(超高)层建筑中近场强震响应研究"

摘　　要：基于STM模型,提出了一种用于剪力墙弹塑性反应分析的简化拉压杆模型.该模型是由两侧链杆单元、中部的斜杆单元和上下无限刚梁铰接构成.除了无限刚梁外,模型的其余杆单元均为仅有轴向滞变关系的二力杆单元.推导给出了模型各杆的等效横截面积计算公式,从而可方便地确定各杆刚度.用上述剪力墙简化拉压杆模型进行了三个实例分析.结果表明第一个实例与理论结果、后两个实例与试验结果分别具有较好的相关性,说明该模型用于模拟剪力墙弹塑性反应分析是可行的.Based on the strut and tie model （STM）, an analytical model of predigested strut and tie model ton shear-wall is put forward. The new model is made up of edge bar, inclined bar and limitless stiffness beam. Three examples were calculated by the predigested strut and tie model of shear-wall. Results show that the first example has close relevance to theretieal results, and the other two examples have close relevance to experimental results, which indicates that it is feasible to simulate the elastic-plastic response of shear-wall by the presented model.

关 键 词：STM 剪力墙 弹塑性反应分析 轴向刚度 

分 类 号：TU375[建筑科学—结构工程] TU398.2