钢板夹心混凝土组合剪力墙的变形能力研究  

RESEARCH ON DEFORMATION CAPABILITY OF DOUBLE-PLATES SHEAR WALL WITH INFILL CONCRETE

作　　者：程卫红 田春雨 王翠坤 CHENG Wei-hong;TIAN Chun-yu;WANG Cui-kun(China Academy of Building Research,Beijing 100013,China;National Engineering Research Center of Building Technology,Beijing100013,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]国家建筑工程技术研究中心,北京100013

出　　处：《工程力学》2024年第4期39-46,共8页Engineering Mechanics

摘　　要：为研究钢板夹心混凝土组合剪力墙的变形能力,该文基于平截面假定推导了钢板夹心混凝土组合剪力墙的截面曲率延性系数,并利用等效塑性铰假定进一步得到其位移延性系数,通过已有试验结果验证了该计算方法的可靠性。利用该计算方法研究了轴压比、端柱套箍指标、剪力墙高宽比、钢板强度、混凝土强度等参数对钢板夹心混凝土组合剪力墙位移延性系数的影响。研究表明:通过控制剪力墙轴压比,适当提高端柱套箍指标,使用低强度钢材以及设置有效构造隔板可有效保证剪力墙的变形能力。To study the deformation capacity of double-plate shear wall with infill concrete(DPSW),the curvature ductility factor of DPSW is derived with the plane-section assumption.The displacement ductility coefficient of DPSW is obtained through the curvature ductility factor based on the equivalent plastic hinge model of cantilevered component.The reliability of the calculation model is verified against existing test results.With the calculation model,the influence of different parameters on the displacement ductility coefficient of DPSW is studied,including the axial compression ratio,confinement index of boundary columns,aspect ratio of shear wall,steel strength and concrete strength.The results show that the displacement deformation capacity of DPSW can be effectively improved by reducing the axial compression ratio,increasing the confinement index,using low-strength steel and setting up effective separators.

关 键 词：钢板夹心混凝土组合剪力墙 变形能力 曲率延性系数 位移延性系数 轴压比 套箍指标 

分 类 号：TU398.2[建筑科学—结构工程]