同主体柔性连接现浇填充墙RC框架结构抗震性能试验研究  

Experimental study on seismic performance of cast-in-place infill wall RC frame structure with flexible connection of the same main body

作　　者：李凯 苏何先[1,3] 赖正聪 缪易辰[1,3] 双超 朱源杰 LI Kai;SU Hexian;LAI Zhengcong;MIAO Yichen;SHUANG Chao;ZHU Yuanjie(Faculty of Civil Engineering,Kunming University of Science and Technology,Kunming 650500,China;Faculty of Public Security and Emergency Management,Kunming University of Science and Technology,Kunming 650500,China;Yunnan Earthquake Engineering Technology Research Center,Kunming 650500,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]昆明理工大学公共安全与应急管理学院,云南昆明650500 [3]云南省抗震工程技术研究中心,云南昆明650500

出　　处：《地震工程与工程振动》2024年第4期125-135,共11页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(52068037)。

摘　　要：为研究PVC拉缝板柔性连接的现浇空心填充墙对钢筋混凝土(reinforced concrete,RC)框架结构抗震性能的影响,以空心混凝土墙和PVC拉缝板为主要因素,设计制作了6榀足尺试件并开展拟静力试验。对比分析纯框架结构、带PVC拉缝板柔性连接和无拉缝板刚性连接的现浇空心填充墙框架结构的破坏特征、荷载-位移曲线、骨架曲线、刚度、位移延性及耗能能力等抗震性能指标。研究结果表明:PVC拉缝板的加入降低了空心混凝土填充墙对框架结构侧向刚度和承载能力的提升作用,改善了现浇空心混凝土填充墙框架结构的位移延性和耗能能力,对填充墙起到了保护作用,但采用PVC拉缝板柔性连接的现浇混凝土空心填充墙仍会显著影响框架结构的抗侧刚度和极限变形,结构设计时应合理考虑其对整体结构抗震性能的不利影响。In order to study the impact of cast-in-place hollow infill walls with flexible connections of PVC joint plates on the seismic performance of reinforced concrete(RC)frame structures,six full-scale specimens were designed and manufactured with hollow concrete walls and PVC joint plates as the main factors,and pseudo static tests were conducted.By comparing and analyzing the seismic performance indicators such as failure characteristics,load displacement curves,skeleton curves,stiffness,displacement ductility,and energy dissipation capacity of cast-in-place hollow infill wall frame structures with pure frame structures,flexible connections with PVC joint plates,and rigid connections without joint plates,it is mainly concluded that the addition of PVC joint plates reduces the improvement effect of hollow concrete infill walls on the lateral stiffness and bearing capacity of the frame structure.The displacement ductility and energy dissipation capacity of the cast-in-place hollow concrete infill wall frame structure have been improved,providing protection for the infill wall.However,the cast-in-place concrete hollow infill wall with flexible connections using PVC joint plates still significantly affects the lateral stiffness and ultimate deformation of the frame structure.When designing the structure,reasonable consideration should be given to its adverse effects on the overall seismic performance of the structure.

关 键 词：钢筋混凝土框架 空心混凝土填充墙 拟静力试验 柔性连接 抗震性能 

分 类 号：TU317.1[建筑科学—结构工程] TU398.9