摘要
以受损装配式短肢剪力墙作为研究对象,用新型外包钢综合法对其加固,通过低周往复荷载试验研究试件加固后的抗震性能。试验结果表明,对比原试件,加固后试件承载力有大幅度提升,其中极限荷载提高68%,屈服荷载提高55%;刚度也有明显的增大,其中屈服刚度提高63.1%;极限位移提高30.4%,体现了良好的延性;且加固后试件耗能性能略强于原试件。综合表明,新型外包钢综合加固法可有效提高受损装配式短肢剪力墙的抗震性能。
Taking the damaged assembled short-leg shear wall as the research object.After the reinforcement by the new outsourcing steel comprehensive method the seismic performance of the strengthened specimens was studied by the low-cycle reciprocating load test.The test results show that,compared with the original specimens,the bearing capacity of the specimens after reinforcement has been greatly improved,including the ultimate load increased by 68%,and the yield load increased by 55%.The stiffness also increased significantly,including the yield stiffness increased by 63.1%,the ultimate displacement increased by 30.4%,which reflecting good ductility.The energy dissipation performance of the specimens after reinforcement is slightly stronger than that of the original specimens.It is concluded that new comprehensive reinforcement method with wrapped steel can effectively improve seismic performance of damaged assembled short-leg shear walls.
作者
刘香
薛鸿杰
吕鹏
Liu Xiang;Xue Hongjie;LüPeng(College of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China)
出处
《建筑结构》
CSCD
北大核心
2019年第11期28-32,13,共6页
Building Structure
关键词
装配式短肢剪力墙
受损加固
抗震性能
assembled short-leg shear wall
damaged reinforcement
seismic resistance
