带可更换部件的联肢剪力墙抗震性能研究  

Seismic performance of RC coupled shear wall with replaceable components

作　　者：蒋欢军[1,2] 李书蓉 JIANG Huanjun;LI Shurong(State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;Department of Disaster Mitigation for Structures,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学土木工程防灾国家重点试验室,上海200092 [2]同济大学结构防灾减灾工程系,上海200092

出　　处：《建筑结构学报》2020年第1期24-32,41,共10页Journal of Building Structures

基　　金：上海市优秀学术带头人计划(18XD1403900)

摘　　要：钢筋混凝土联肢剪力墙结构在地震作用下,钢筋混凝土连梁和剪力墙的墙脚常遭到严重破坏,修复困难。为此,提出了一种带有可更换连梁和可更换墙脚部件的可恢复功能联肢剪力墙,介绍了带可更换部件的联肢剪力墙的设计方法。为了研究带可更换部件的联肢剪力墙的抗震性能和破坏模式,以一片10层联肢剪力墙为例,对带有可更换部件的联肢剪力墙和传统联肢剪力墙进行了地震反应时程对比分析。计算结果表明,在地震作用下,可更换连梁和可更换墙脚部件先后屈服,破坏集中在可更换部件上,带可更换部件的联肢剪力墙的抗震性能显著提高。It is found from the past earthquakes that the coupling beams and the bottom corners of RC coupled shear walls easily suffer severe damage which is very difficult to be repaired.To solve this problem,a new kind of coupled shear wall with replaceable coupling beams and replaceable components installed at the two bottom corners of wall piers was proposed.The design method of the new coupled shear wall was introduced.To verify the seismic performance and failure mode of the new coupled shear wall,a case study of 10-story coupled shear wall structure was carried out.Under earthquake actions,the responses of two structures,a traditional structure and a structure with replaceable components,were analyzed and compared.The results show that the replaceable coupling beams yield first,then the replaceable corner components yield.The damage concentrates on the replaceable components.Compared with the traditional structure,the seismic performance of the structure with replaceable components is improved significantly.

关 键 词：可恢复功能结构 钢筋混凝土剪力墙 可更换部件 设计方法 抗震性能 

分 类 号：TU375[建筑科学—结构工程] TU352.1