钢板混凝土联肢剪力墙抗震性能试验研究  

Experimental study on seismic behavior of coupled steel plate and concrete composite wall

作　　者：伍云天[1,2] 王枭 张婕 曾朕 徐金俊 WU Yuntian;WANG Xiao;ZHANG Jie;ZENG Zhen;XU Jinjun(Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education,Chongqing University,Chongqing 400045,China;School of Civil Engineering,Chongqing University,Chongqing 400045,China;Shenzhen Vanke Commercial Management,Co.,Ltd.,Shenzhen 518000,China;College of Civil Engineering,Nanjing Tech University,Nanjing 211800,China)

机构地区：[1]重庆大学山地城镇建设与新技术教育部重点实验室,重庆400045 [2]重庆大学土木工程学院,重庆400045 [3]深圳市万科商业管理有限公司,广东深圳518000 [4]南京工业大学土木工程学院,江苏南京211800

出　　处：《地震工程与工程振动》2021年第1期44-52,共9页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金面上项目(51978101)。

摘　　要：以轴压比和钢连梁弯剪比为主要参数,设计并制作了3个1/4缩尺的钢板混凝土联肢剪力墙子结构,对试件施加恒定轴压力和水平往复加载。观察了各试件破坏特征,对比了顶层水平荷载-侧移曲线和骨架曲线以及延性系数和等效黏滞阻尼系数等抗震性能指标。结果表明:高轴压比会使整个试件的延性变差;弯剪比越大试件耗能能力越好,弯剪比越小试件刚度退化越明显。钢连梁先于墙肢底部屈服并持续剪切耗能,有效保护了墙肢底部。Three 1:4 scaled test subassemblies of coupled steel plate and concrete composite walls were designed and constructed considering various axial load ratios of wall piers and flexure-to-shear ratios of steel coupling beams.Constant axial load and reversed cyclic lateral load were applied to the test subassemblies to examine their seismic behavior in terms of failure patterns,hysteretic loops,skeleton curves,displacement ductility and damping property.The results show that:high axial compression ratio will make the ductility of the whole specimen worse;the larger the flexure-to-shear,the better the energy dissipation capacity of the specimen;and the smaller the flexure-to-shear,the more obvious the degradation of the specimen stiffness.The steel coupling beam yielded earlier than bottom of the wall limb and sustained shear energy consumption,which effectively protected the bottom of the wall limb.

关 键 词：联肢剪力墙 轴压比 弯剪比 抗震性能 钢连梁 

分 类 号：TU398.2[建筑科学—结构工程]