装配式人字撑复合墙板异形柱框架抗震性能研究  

Study on seismic performance of specially shaped column frame with prefabricated chevron bracing composite wallbord

作　　者：丁景花 钱坤[2] 秦兰兰 DING Jinghua;QIAN Kun;QIN Lanlan(Department of Building Engineering,Guangzhou Vocational and Technical University of Science and Technology,Guangzhou 510550,China;College of Civil Engineering,Jilin Jianzhu University,Changchun 130118,China)

机构地区：[1]广州科技职业技术大学建筑工程学院,广州510550 [2]吉林建筑大学土木工程学院,长春130118

出　　处：《建筑结构》2024年第3期103-110,共8页Building Structure

基　　金：吉林省科技发展计划项目(20190303123SF);广东省普通高校青年创新人才项目(2022KQNCX148)。

摘　　要：提出一种新型装配式人字撑复合墙板异形柱框架结构。为研究其抗震性能,对一榀1/2缩尺异形柱框架结构进行低周反复荷载试验,分析其破坏形态、滞回曲线、承载力、耗能能力、位移延性、刚度退化等指标,并通过ABAQUS有限元软件模拟后将模拟结果与试验结果进行了对比分析。研究结果表明:装配式人字撑复合墙板异形柱框架结构呈现“泡沫混凝土-人字撑-叠合框架梁-组合异形框架柱”分级破坏顺序;复合墙板以剪切破坏为主;人字撑在水平往复位移荷载作用下,可与异形柱框架结构形成双重抗震体系,提高结构的抗震能力;有限元模拟结果与试验结果吻合良好,该有限元模拟方法适用于装配式人字撑复合墙板异形柱框架结构。A new type of specially shaped column frame structure with prefabricated chevron bracing composite wallboard was proposed.In order to study its seismic performance,a 1/2 scale shaped column frame structure was tested under low⁃cycle cyclic loading test,and its failure pattern,hysteresis curve,bearing capacity,energy dissipation capacity,displacement ductility,stiffness degradation and other indexes were analyzed.ABAQUS finite element simulation results was compared with the test results after the simulation by ABAQUS finite element software.The results show that the specially shaped column frame structure with prefabricated chevron bracing composite wallboard is damaged in the following sequence:foamed concrete,chevron brace,composite frame beam,and composite specially shaped frame column.The composite wallboard mainly experiences shear failure;under the action of horizontal reciprocating displacement load,chevron brace and the specially shaped column frame structure can form a dual seismic resistance system to improve the seismic capacity of the structure.The finite element simulation results are in good agreement with the experimental results,and the finite element simulation method is suitable for the specially shaped column frame structure with prefabricated chevron bracing composite wallboard.

关 键 词：人字撑复合墙板 异形柱框架结构 低周反复荷载试验 有限元数值模拟 抗震性能 

分 类 号：TU375[建筑科学—结构工程]