装配式内藏钢桁架混凝土剪力墙抗震性能试验研究  

Experimental study on seismic behavior of precast concrete shear wall with concealed steel truss

作　　者：汪梦甫[1] 武文博 刘泽龙[1] 郭圣祈 WANG Mengfu;WU Wenbo;LIU Zelong;GUO Shengqi(College of Civil Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《地震工程与工程振动》2022年第1期11-24,共14页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51578225,52078203)。

摘　　要：为了提高装配式剪力墙的抗震性能,提出并设计了一片暗柱内置H型钢装配式内藏钢桁架混凝土剪力墙及一片暗柱内置圆钢管装配式内藏钢桁架混凝土剪力墙,其中H型钢竖向连接采用顶底角钢复合连接,圆钢管竖向连接采用端板焊接。通过对试件进行低周反复加载试验,得到剪力墙试件的破坏模式、滞回曲线、承载力、延性、残余变形、刚度退化和耗能能力等抗震性能指标。试验结果表明:与暗柱内置圆钢管内藏钢桁架混凝土剪力墙相比,暗柱内置H型钢内藏钢桁架混凝土剪力墙的承载力、延性和耗能能力更好,H型钢竖向连接方式能够更好的传递应力,连接方式更为牢靠,保证了预制剪力墙的整体性。To improve the seismic behavior of the precast RC shear wall,one precast steel truss RC shear wall with hidden column embedded with the H-shaped steel and one precast steel truss RC shear wall with hidden column embedded with the circular steel tube were proposed and designed.The vertical connection of the H-shaped steel adopted the top-and-seat angle composite connection.The vertical connection of the circular steel tube adopted end plate welding.Then the quasi-static tests of the two specimens were carried out.The failure modes,hysteretic curves,bearing capacities,ductility coefficients,residual deformations,stiffness degradation and energy dissipation capacities of the two specimens were obtained.The test results showed that the bearing capacity,ductility coefficient and energy dissipation capacity of precast steel truss RC shear wall with hidden column embedded with the H-shaped steel were better than those of the wall with hidden column embedded with the circular steel tube,and the vertical connection of the H-shaped steel in this paper was more reliable and had better ability to transfer stress at assembly joint than the vertical connection of the circular steel tube,which could guarantee the integrity of precast shear wall.

关 键 词：装配式剪力墙 内藏钢桁架 低周反复加载试验 抗震性能 

分 类 号：TU352.[建筑科学—结构工程]