钢板墙与防屈曲组合钢板墙的受剪性能分析  

Shear Performance Analysis of Steel Plate Shear Walls with and without Concrete Stiffening Panels

作　　者：陈麟[1] 赵锐荣[1] 周云[1] 

机构地区：[1]广州大学土木工程学院,广州510006

出　　处：《建筑科学》2011年第7期5-10,共6页Building Science

基　　金：广东省基金团队项目(8351009101000001);广东省科技计划项目(2008B030303075);广州市科技计划项目(2008J1-C251-1);广州市属高校科技计划项目(08C048);广州大学减震控制与结构安全开放实验室基金项目

摘　　要：考虑几何非线性和面外初始缺陷,通过变化内嵌钢板的高厚比λ,考察了钢板墙与防屈曲组合钢板墙在水平荷载作用下的承载力、抗侧刚度和滞回性能的差异,并对比分析了两种墙体的内嵌钢板与边缘框架柱的相互作用。结果表明,随λ由大到小变化,钢板墙可分为薄钢板墙、中厚钢板墙和厚钢板墙三类;由于受到面外约束的作用,与钢板墙相比,防屈曲组合钢板墙具有更好的抗剪承载力和耗能能力,利用防屈曲组合钢板墙替代中厚钢板墙和薄钢板墙是经济可行的,且不存在因屈曲后拉力场效用对边柱产生的附加弯矩作用,更有利于实现"强框架弱墙体"的延性设计。Buckling-restrained composite steel plate shear wall（BR-CSPW） is a new type of earthquake-resisting element.With varying height-to-thickness ratio λ of the steel plate,the shear performance of BR-CSPW and steel plate shear wall（SPW） under shear loading is studied by means of nonlinear finite element analysis using ABAQUS software.Large-deflection effect and out-of-plane initial imperfection are taken into account.To further identify the effect of internal force on the behavior of boundary column,interaction between steel plate and boundary column of BR-CSPW and SPW is also investigated.The results show that,according to different λ,SPW can be categorized into three groups-thin SPW,medium thickness SPW and thick SPW;BR-CSPW resists the story shear by yielding in shears,and has relatively much higher shear capacity and energy dissipation capacity,which indicates that Using BR-CSPW instead of thin SPW and medium thickness SPW is feasible and won＇t cause the adverse effect of diagonal tension field action on the boundary column,as a result,is more advantageous to the desire for ductile design criterion of strong boundary frame-weak steel plate wall.

关 键 词：钢板墙 防屈曲组合钢板墙 高厚比 受剪性能 滞回性能 

分 类 号：TU392.4[建筑科学—结构工程] TU312