带边缘约束构件的双钢板混凝土组合剪力墙抗震性能研究  

Study on seismic performance of double steel plate concrete composite shear wall with confined boundary elements

作　　者：王春刚[1] 李姗珊 张壮南[1] 陈勇 郎崎 陈鹏 程大业 WANG Chungang;LI Shanshan;ZHANG Zhuangnan;CHEN Yong;LANG Qi;CHEN Peng;CHENG Daye(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China;China Northeast Architectural Design&Research Institute,Shenyang 110006,China;Jilin Sub-bureau of Northeast Regional Air Traffic Management Bureau.CAAC,Changchun 130022,China;China Jingye Engineering Co.,Ltd,Beijing 100088,China)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]中国建筑东北设计研究院,辽宁沈阳110006 [3]中国民用航空东北地区空中交通管理局吉林分局,吉林长春130022 [4]中国京冶工程技术有限公司,北京100088

出　　处：《建筑结构学报》2024年第S01期206-215,共10页Journal of Building Structures

基　　金：中建股份科技研发课题(CSCEC-2010-Z-01-02,CSCEC-2010-C-05)

摘　　要：为了解决常规双钢板-混凝土组合剪力墙的边缘约束构件施工困难的问题,以边缘约束构件构造方式(方钢管、端板与内隔板或缀板组合而成)、抗剪连接件形式(内隔板、缀板)等作为参数,对4片组合剪力墙进行了拟静力试验,研究了各墙体破坏模式、承载力、延性、刚度以及耗能能力等抗震性能。采用ABAQUS有限元软件建立组合剪力墙模型,对其抗震性能进行数值模拟,并对边缘约束构件由缀板与端板组成的组合剪力墙受力性能进行分析。结果表明:各墙体均为压弯破坏,层间位移角在1/200之前骨架曲线相似,但边缘约束构件由缀板与端板组成的组合墙体延性较差;边缘约束构件形式对组合剪力墙峰值荷载和峰值位移影响较大,边缘约束构件由内隔板或缀板与端板组成的墙体峰值荷载较方钢管作为边缘约束构件的墙体均降低30%左右,且峰值位移分别降低35.4%和53.5%;对于边缘约束构件由内隔板与端板组成的组合剪力墙,相同条件下增加端板厚度和材料强度较增加腹板厚度和材料强度更能有效提高组合剪力墙的峰值荷载,此外端板增设T形加劲肋对组合剪力墙峰值位移和峰值荷载的提高作用较为明显。In response to the construction challenges of confined boundary elements in traditional double steel plate-concrete composite shear walls,this study conducted quasi-static tests on four composite shear wall specimens.These tests utilized construction methods involving confined boundary elements(square steel tubes and cavities separated by inner diaphragms or batten plates)and forms of shear connectors(inner diaphragms and batten plates).The objective was to study the seismic performance of each specimen,including failure modes,bearing capacity,ductility,stiffness,and energy dissipation capacity.Furthermore,the seismic performance of the composite shear walls was numerically simulated using ABAQUS finite element software,with a detailed analysis of the mechanical performance of composite shear walls featuring cavities separated by inner diaphragms as confined boundary elements.The findings indicate that all specimens exhibit flexural failure.w ith inter-story displacement angles less than 1/200,the skeleton curves of the specimens are similar,but composite walls with cavities separated by batten plates show relatively lower ductility.The construction form of the confined boundary elements significantly impacts the peak load and peak displacement of the composite shear walls.Compared to walls with square steel tubes as confined boundary elements,walls with cavities separated by inner diaphragms or batten plates see a reduction of about 30%in peak load,with peak displacement reduced by 35.4%and 53.5%,respectively.For composite shear walls with cavities separated by inner diaphragms,under the same conditions,enhancing the strength and thickness of the end plates proves more effective in increasing the peak load than enhancing the strength and thickness of the web plates.Additionally,the inclusion of T-shaped stiffeners on the end plates notably enhances the peak displacement and peak load of the composite shear wall.

关 键 词：双钢板混凝土组合剪力墙 边缘约束构件 拟静力试验 有限元分析 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程] TU352.11