不同节点连接方式下钢板剪力墙抗震性能研究  

RESEARCH ON THE SEISMIC PERFORMANCE OF STEEL PLATE SHEAR WALL WITH DIFFERENT CONNECTION MODES

作　　者：张淑云[1] 赵帅辉[1] 

机构地区：[1]西安科技大学建筑与土木工程学院,西安710054

出　　处：《钢结构》2016年第7期22-25,12,共5页Steel Construction

基　　金：国家自然科学基金项目(50778150);陕西省教育厅科研计划资助项目(2013JK0970)

摘　　要：为研究不同节点连接方式下钢板剪力墙的性能,应用有限元软件ABAQUS建立其非线性分析模型,采用4节点缩减积分壳单元,采用组合强化本构关系,考虑几何缺陷,并与试验结果对比验证了数值分析模型的适用性,在此基础上,对节点刚性连接与铰接连接方式下钢板剪力墙的侧向承载力、剪力分配、应力分布、滞回性能等进行了比较与分析。结果表明:不同节点连接方式对初始承载力影响很小,节点刚接比铰接的结构极限承载力提高约10%;两种节点连接模型都会产生"弱钢板强框架"的破坏形态,但节点铰接时,框架柱和钢板墙之间剪力分配更均匀;铰接模型比刚接模型的延性系数提高23%,等效黏滞阻尼系数提高29%,铰接钢板剪力墙结构具有更好的抗震性能。In order to study the seismic performance of steel plate shear wall with different connection modes,the nonlinear analysis model were established by finite element software ABAQUS,in which four node reduced integral shell elements were used,mixed hardening constitutive relation were applied,the geometrical imperfections were considered,and the applicability of the numerical analysis model were compared with the experimental results. On this basis,the lateral bearing capacity,shear distribution,stress distribution and hysteretic behavior of steel plate shear wall were compared and analyzed. The results showed that the different connection modes had a small influence on the initial bearing capacity,and the ultimate bearing capacity of a rigid joint was increased about 10% than that of a hinged one. The failure mode of weak steel plate and strong steel frame occured in both joint modes,however,the shear distribution between the frame columns and plates was more homogeneous. The ductility factor of a hinge joint was increased about 23% than that of a rigid one.The equivalent viscous damping coefficient was increased about 29% than that of a rigid one,the conclusion was obtained that the steel plate shear wall of hinge joints had better seismic performance.

关 键 词：节点连接方式 钢板剪力墙 有限元分析 抗震性能 

分 类 号：TU392.4[建筑科学—结构工程]