联肢弯剪型钢板剪力墙抗震性能试验研究  

Experiment on the Seismic Behavior of Coupled Bending Shear Steel Plate Shear Wall

作　　者：郝际平[1] 兰芮 田炜烽[1] 薛强[1,2] 李生辉 樊春雷[1,2] 徐坤[3] 朱邵辉 王洪臣 HAO Jiping;LAN Rui;TIAN Weifeng;XUE Qiang;LI Shenghui;FAN Chunlei;XU Kun;ZHU Shaohui;WANG Hongchen(College of Civil Engineering,Xi’an University of Architecture&Technology,Xi’an 710055,China;Prefabricated Steel Structure Research Institute Co.,Ltd.of Xi’an University of Architecture&Technology,Xi’an 710055,China;China Construction Science and Industry Co.,Ltd.,Shenzhen 518000,China;China Northwest Architectural Design and Research Institute Co.,Ltd.,Xi’an 710018,China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]西安建大装配式钢结构研究院有限公司,西安710055 [3]中建科工集团有限公司,广东深圳518000 [4]中国建筑西北设计研究院有限公司,西安710018

出　　处：《建筑钢结构进展》2024年第4期10-19,共10页Progress in Steel Building Structures

基　　金：国家自然科学基金(51878541);陕西省重点研发计划项目(2022SF-121)。

摘　　要：联肢钢板剪力墙结构是将2片钢板剪力墙通过钢连梁连接形成的抗侧力结构。通过对1榀1/3缩尺的4层联肢弯剪型钢板剪力墙试件进行低周往复加载试验,从滞回曲线、骨架曲线、延性、承载力及刚度退化、耗能能力等方面研究了该结构体系的抗震性能,并且对试件的屈服顺序和变形模式进行了分析。结果表明:联肢钢板剪力墙试件的延性系数达到5.03,承载力退化系数均大于0.96,承载力和刚度退化稳定,等效黏滞阻尼系数达到0.25以上,表明联肢弯剪型钢板剪力墙具有优越的抗震性能。加载过程中,连梁先于墙板发生屈服,墙板先屈曲后屈服,此后柱脚和横梁相继屈服。连梁的引入改变了结构的屈服机制,提高了整体的延性和耗能能力,能够组成多道抗震防线,且试件整体最终也体现出合理的破坏机制。整体侧移曲线呈弯剪变形模式。该试验研究更加贴合实际工程中联肢钢板剪力墙结构的应用情况,为联肢钢板剪力墙结构的进一步研究和应用提供了试验基础。A lateral force-resisting structure known as a coupled steel plate shear wall structure is created by connecting two steel plate shear walls together with steel coupling beams.In this paper the seismic performance of the structural system was studied from the perspectives of the hysteresis curve,the skeleton curve,ductility,bearing capacity,stiffness degradation,energy dissipation capacity,etc.Through the quasi-static test of a 1/3 scale 4-story coupled steel plate shear wall specimen,the yielding sequence and deformation mode of the specimen were analyzed.The results show that the ductility coefficient of the coupled steel plate shear wall specimen is 5.03,the bearing capacity degradation coefficient is larger than 0.96,the bearing capacity and stiffness degradation are stable.The equivalent viscous damping coefficient is more than 0.25,which indicates that the coupled steel plate shear wall has excellent seismic performance.The coupling beam yields firstly during loading,followed by the wallboard,which firstly buckles before yielding,and then the column base and beam.The coupling beam’s addition altered the structure’s yield mechanism,enhanced overall ductility and energy dissipation capacity,and can create several seismic fortification lines,resulting in an overall specimen that now exhibits a reasonable failure mechanism.The entire lateral displacement curve is deformed by bending and shearing.The experimental research offers a reference for future research and application of coupled steel plate shear wall structures,and is more appropriate for the implementation of coupled steel plate shear wall structures in actual projects.

关 键 词：联肢钢板剪力墙 低周往复加载试验 抗震性能 屈服机制 变形模式 

分 类 号：TU352.1[建筑科学—结构工程] TU317.1