装配式隔震结构中隔震节点抗震性能研究  

Seismic behavior of isolation connection in assembled seismic isolation structure

作　　者：谭平[1] 李洋[2] 匡珍[1] 沈朝勇[1] 周福霖[1,2] 

机构地区：[1]广州大学,广东广州510405 [2]湖南大学,湖南长沙410082

出　　处：《土木工程学报》2015年第2期10-17,共8页China Civil Engineering Journal

基　　金：973计划课题(2012CB723304);"十二五"国家科技支撑计划(2012BAJ07B02);长江学者和创新团队发展计划项目(IRT13057);教育部新世纪人才项目(NCET-11-0914);国家自然科学基金(91315301-07);广东省科技计划项目(2010B090400469)

摘　　要：针对装配式隔震结构,提出一种新型装配式隔震节点,采用1/2缩尺模型对该新型装配式隔震节点在低周反复荷载作用下的破坏形态、滞回特性、骨架曲线、延性性能、耗能能力等性能进行研究,并与现浇节点进行对比。结果表明,此类新型装配式隔震节点应用于装配式隔震结构是可行的。利用有限元分析软件Open Sees对试验的装配节点和现浇节点的滞回特性进行数值模拟,模拟结果与试验结果基本吻合。A new type of assembled isolation connection,which can be used for assembled seismic isolation structures,is proposed. The seismic behavior of the isolation connection was experimentally investigated. Two specimens with a scale ratio of 1 /2 was tested under cyclic loading,and the failure pattern,hysteretic characteristics,skeleton curve,ductility and energy dissipation capacity,were analyzed. A cast-in-situ isolation connection was also tested for the purpose of comparison. The test results indicate that this type of isolation connection is applicable to the assembled isolation structures. Numerical simulation were carried out to simulate the hysteretic characteristics of both the assembled and the cast-in-situ connections by using a finite element program named Open Sees. It is found that the simulation results agree well with the experimental results.

关 键 词：装配式结构 节点 低周反复试验 隔震 

分 类 号：TU352.12[建筑科学—结构工程]