摘要
提出一种底部设置屈曲约束支撑(BRB)的自复位混凝土剪力墙,提高了剪力墙的自复位能力和耗能能力,同时考虑了耗能构件可更换性。为了研究该自复位混凝土剪力墙的抗震性能和韧性,该文设计制作1片剪力墙试件和2组BRB构件,进行了拟静力试验和更换试验研究,分析了试件的破坏特征、滞回性能、自复位性能和可恢复性能等。试验结果表明:该文提出的自复位墙损伤主要集中在BRB上,其耗能能力较好,具有一定的自复位能力;BRB更换较为方便,更换前后自复位混凝土墙的抗震性能基本保持不变,表明其功能可恢复性较好。
A self-centering concrete shear wall with buckling-restrained braces(BRBs)at its base is proposed to improve the self-centering and energy dissipation capacity of the shear wall and consider the replaceability of the energy-dissipating members.In order to study the aseismic performance and resilience of the shear wall,one shear wall and two groups of BRBs were designed and manufactured.The pseudo-static and replacement tests were conducted,and the failure modes,hysteresis,self-centering and earthquake-resilient performance of the specimens were studied.The results indicate that:the damage of self-centering shear wall is mainly concentrated on the BRBs,and the proposed wall has a good energy dissipation capacity and certain self-centering capability.The hysteretic performance of the self-centering shear wall before and after replacing BRBs remains basically unchanged,which indicates that it behaves a good earthquake-resilience.
作者
蒋庆
王韶颖
冯玉龙
种迅
朱毅
周亚婷
JIANG Qing;WANG Shao-ying;FENG Yu-long;CHONG Xun;ZHU Yi;ZHOU Ya-ting(School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Anhui Key Laboratory of Civil Engineering Structure and Materials,Hefei University of Technology,Hefei 230009,China)
出处
《工程力学》
EI
CSCD
北大核心
2021年第10期173-180,共8页
Engineering Mechanics
基金
国家自然科学基金项目(51708166)
中央高校基本科研业务费专项资金项目(JZ2019HGTB0086)。
关键词
剪力墙
自复位
屈曲约束支撑
功能可恢复性
试验研究
shear wall
self-centering
buckling-restrained braces
earthquake-resilience
experimental study
