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自复位耗能支撑钢板剪力墙的滞回性能研究

本站小编 Free考研考试/2022-01-16

徐龙河, 刘嘉琳
AuthorsHTML:徐龙河, 刘嘉琳
AuthorsListE:Xu Longhe, Liu Jialin
AuthorsHTMLE:Xu Longhe, Liu Jialin
Unit:北京交通大学土木建筑工程学院,北京 100044
Unit_EngLish:School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
Abstract_Chinese:提出一种带自复位耗能支撑的钢板剪力墙(SPSW-SCEDB), 由墙板与自复位耗能支撑组成, 对其构造及工作原理进行了介绍.对SPSW-SCEDB在低周往复荷载作用下的滞回性能进行数值模拟, 并与两边连接钢板剪力墙进行对比分析.结果表明, SPSW-SCEDB滞回曲线呈旗形, 具备良好的承载能力、耗能能力与复位能力.与两边连接钢板剪力墙相比, SPSW-SCEDB极限承载力提高31% , 残余变形角减小91% ; 同时, 由于支撑与墙板的共同作用减缓了承载力退化, 改善了延性及耗能能力, 验证了SPSW-SCEDB具有良好的抗震性能.
Abstract_English:A kind of steel plate shear wall with self-centering energy dissipation brace(SPSW-SCEDB)is proposed,which is composed of steel plate and self-centering energy dissipation braces. Configuration and working principle of SPSW-SCEDB are introduced. Hysteretic behavior of SPSW-SCEDB is simulated under low cyclic reversed loadings,and then compared with that of steel plate shear wall with two-side connections. Results indicate that the SPSW-SCEDB exhibits flag-shaped hysteretic performance,and has good bearing capacity,energy dissipation capacity and self-centering capability. Compared with the steel plate shear wall with two-side connections,the ultimate bearing capacity of SPSW-SCEDB is increased by 31% ,and the residual drift ratio is reduced by 91% . Meanwhile,the interaction between braces and steel plate slows down the bearing capacity degradation and improves the ductility and energy dissipation capabilities. It is verified that the SPSW-SCEDB has good seismic performance.
Keyword_Chinese:钢板剪力墙; 自复位耗能支撑; 滞回性能; 耗能能力; 残余变形
Keywords_English:steel plate shear wall; self-centering energy dissipation brace; hysteretic behavior; energy dissipation capability; residual deformation

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