多点激励下单层网壳新型减震体系的性能研究  

The Performance of Reticular Dome with New Seismic Vibration Reduction System under Multiple Support Excitations

作　　者：王秀丽[1] 骆贵波[1] 

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《建筑科学》2010年第11期5-7,4,共4页Building Science

基　　金：国家自然基金项目(50678078)

摘　　要：利用Ansys大型有限元软件,建立布置了约束屈曲支撑的K8网壳新型减震体系有限元模型。通过非线性时程分析研究了体系在多点地震动输入下的抗震性能,并通过与普通网壳和其在地震动一致激励下的性能相对比,得出约束屈曲支撑在地震动多点激励性的减震性能,给出这种新型网壳体系的合理理论分析方法。The finite element analysis software ANSYS was applied to establish a Kiewitt-dom with new seismic vibration reduction system（arranged with BRBs）.On the basis of the dynamic time history analysis,the performance of the system under multiple support excitations is summarized;compared with the performance of the normal reticular dome and the system with BRBs under uniform excitation,the vibration reduction effect of BRBs under multiple support excitations is analyzed.And also some conclusions are proposed for analysis of this new reticular dome system.

关 键 词：新型减震体系 约束屈曲支撑 多点激励 大质量法 

分 类 号：TU33[建筑科学—结构工程] TU392.6