装配式槽钢骨架轻质混凝土剪力墙抗震性能试验研究及有限元分析  

Experimental study and FEA on seismic behavior of precast channel framing lightw eight concrete shear w alls

作　　者：李传浩 王二成[1,2] 张京军 刘凯[1] 郑贤贤 申彦利 LI Chuanhao;WANG Ercheng;ZHANG Jingjun;LIU Kai;ZHENG Xianxian;SHEN Yanli(School of Civil Engineering,Hebei University of Engineering,Handan 056038 China;Hebei Prefabricated Concrete Steucture Technology Research Center,Handan 056038 China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]河北省装配式结构工程技术研究中心,河北邯郸056038

出　　处：《混凝土》2019年第8期8-12,16,共6页Concrete

基　　金：国家自然科学基金资助项目(51378169);河北省自然科学基金资助项目(F2017402182)

摘　　要：为研究装配式槽钢骨架轻质混凝土剪力墙抗震性能,对装配式槽钢骨架轻质混凝土剪力墙试件进行低周反复试验,分析了试件的破坏特征、滞回曲线、骨架曲线、刚度退化以及耗能能力。利用Abaqus有限元分析软件建立试件数值模型,模拟结果与试验吻合较好。在此基础上,研究暗柱数量、X形暗支撑对型钢骨架轻质混凝土剪力墙承载能力以及延性性能的影响。分析结果表明:设置3、2根暗柱试件的极限水平承载力相对于1根暗柱试件分别提高25.9%、8.3%,延性分别降低37.3%、17.3%;设置X形暗支撑试件的极限水平承载力、延性相对于无X形暗支撑试件分别提高46.9%、66.7%,屈强比减小,说明X形暗支撑能够更加有效改善结构的抗震性能。In order to research the seismic behavior of precast channel framing lightweight concrete shear wall,one specimen was tested under lowcyclic loading.The failure characteristics,hysteretic curves,skeleton curves,stiffness degradation and energy dissipation capacity of the specimens were analyzed.The numerical model specimen was established by finite element analysis software ABAQUS,the results are compatible with the experimental data.On this basis,the influence of the number of concealed columns and the X shaped concealed bracing on the bearing capacity and ductility of shear wall is studied.The results show that the ultimate horizontal bearing capacity and ductility of the specimens with three and two concealed columns are increased by 25.9%and 8.3%respectively,and the ductility is decreased by 37.3%and 17.3%respectively.The ultimate horizontal bearing capacity and ductility of the specimens with X shaped concealed supports are increased by 46.9%and 66.7%,respectively,and the yield ratio is decreased.Thus theX shaped concealed bracing is more effective in improving the seismic behavior of shear wall.

关 键 词：槽钢骨架 轻质混凝土剪力墙 抗震性能 试验研究 有限元分析 

分 类 号：TU528.01[建筑科学—建筑技术科学]