新型网壳减震体系模拟地震振动台实验  

Shaking table test on a new dissipation system of reticulated shells

作　　者：周锟[1] 王秀丽[1] 吴长[1] 江磊[1] 

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《兰州大学学报（自然科学版）》2013年第5期639-643,共5页Journal of Lanzhou University(Natural Sciences)

基　　金：国家自然科学基金项目(51068019;50678078)

摘　　要：对设置了屈曲约束支撑的新型网壳减震体系的抗震性能进行了分析,并用网壳结构缩尺模型模拟地震振动台实验.通过实验,分析新型网壳减震体系在不同水准地震作用下的动力特性、减震耗能性能及破坏机理.实验和数值分析结果表明地震作用下设置了屈曲约束支撑的K型球面网壳地震响应有所减小,屈曲约束支撑起到一定减震耗能作用.A new dissipation system of reticulated shell structure with buckling restrained brace was analyzed for its performance in earthquake resistance, and the shaking table test was conducted with the reduced scale model to simulate dynamic characteristics, dissipation capacity and failure mechanism under different levels of seismic actions. The results of the test and numerical analysis show that the seismic response of Kiewit dome with buckling restrained brace decreases and the effect of vibration dissipation is clear and good.

关 键 词：屈曲约束支撑 振动台实验 网壳结构 抗震性能 

分 类 号：TU356[建筑科学—结构工程] TU311.3