带约束拉杆双层钢板内填混凝土组合剪力墙抗震性能试验研究  

Experimental study on seismic behavior of composite shear wall with double steel plates and infill concrete with binding bars

作　　者：刘鸿亮[1] 蔡健[2] 杨春[2] 陈庆军[2] 左志亮[1] 

机构地区：[1]华南理工大学土木工程系,广东广州510641 [2]华南理工大学亚热带建筑科学国家重点实验室,广东广州510641

出　　处：《建筑结构学报》2013年第6期84-92,共9页Journal of Building Structures

基　　金：亚热带建筑科学国家重点实验室项目(X2TJ-C709025z);亚热带建筑科学国家重点实验室自主研究课题(2011ZC28;2011ZC25);国家自然科学基金项目(50878087);中央高校基本科研业务费项目(2012ZB0025)

摘　　要：提出一种带约束拉杆双层钢板内填混凝土组合剪力墙,通过对6个剪跨比为2.0、轴压比为0.6的此类剪力墙试件的低周往复加载试验,研究试件的破坏形态、滞回曲线、骨架曲线、承载力退化、刚度退化、位移延性系数和耗能等抗震性能。结果表明:带约束拉杆双层钢板内填混凝土组合剪力墙抗震性能良好,6个试件的屈服位移角平均值为1/147,极限位移角平均值为1/48,位移延性系数平均值为3.57;减小约束拉杆间距和采用梅花式布置约束拉杆的方式,能更好地对钢板和混凝土提供约束,延缓钢板局部屈曲,增大混凝土的极限变形能力,提高剪力墙承载力、延性和耗能能力,减缓承载力退化和刚度退化,改善剪力墙抗震性能。A new type of composite shear wall with double steel plates and infill concrete with binding bars was proposed.Six composite shear wall specimens were tested.The shear span ratio of all specimens was 2.0 and testing axial compression ratio was 0.6.The failure characteristics,hysteretic curve,skeleton curve,strength degradation,stiffness degradation,ductility and energy dissipation capacity of the specimens were observed.The results indicate that the composite shear wall with double steel plates and infill concrete with binding bars shows great seismic performance.The average values of the yield drift angle,ultimate drift angle and displacement ductility factor for the six tests walls are 1/147,1/48 and 3.57,respectively.The local buckling of steel plate is delayed,the limit deformation ability of concrete is increased,the bearing capacity,ductility and energy dissipation capacity are improved,the strength degradation and stiffness degradation are slow down.The seismic behavior of composite shear wall can be further improved by decreasing the binding bars spacing and setting the binding bars in quincunx form which can provide stronger constraint for steel plate and concrete.

关 键 词：组合剪力墙 约束拉杆 拟静力试验 抗震性能 

分 类 号：TU398.9[建筑科学—结构工程] TU317.1