摘要
以某历史建筑的隔震保护为背景,对三种隔震布置方案进行对比分析。分别从上部结构和隔震层两部分进行性能评估,并结合能量分析,作进一步耗能特性判断。结果表明,组合隔震体系能起到很好的减震效果,而在其工程应用中,有必要同时考虑结构的地震反应和耗能特性,根据实际工程确定性能评估指标,以此作为隔震布置优化标准。对于本工程,考虑历史建筑对上部建筑结构的保护要求,以弹性滑板支座叠加黏滞阻尼器的组合隔震方式最佳。
Based on the isolation protection of a historical building,three kinds of isolation configuration were selected and comparativly analyzed. The performance evaluation was carried out from the upper structure and the isolation layer,and the energy analysis was combined to determine the further energy consumption characteristics. The results show that the composite isolation system can have great seismic-reduction effect. Furthermore,in its engineering application the seismic response and energy dissipation characteristics of the structure are necessary to consider simultaneously,and then the performance evaluation indexes are determined according to the actual project,which are regarded as the optimal procedure for isolation configuration. For this project,considering the protection requirements of historical building for the super structure,the composite isolation configuration with elastic sliding bearings and viscous dampers would be the best resolution.
作者
潘晴炜
尼凯黎
卢文胜
Pan Qingwei;Nika Ilovar;Lu Wensheng;Research Institute of Structural Engineering and Disaster Reduction,College of Civil Engineering,Tongji University(Research Institute of Structural Engineering and Disaster Reduction,College of Civil Engineering,Tongji University,Shanghai 200092,China)
出处
《建筑结构》
CSCD
北大核心
2018年第S2期447-451,共5页
Building Structure
基金
国家自然科学基金项目(51578411)
地震工程国际联合课题(ILEE-IJRP-P2-P3-2017)
关键词
历史建筑
组合隔震
上部结构
隔震层
耗能比
historical building
composite isolation
super structure
isolation layer
energy dissipation ratio
