某住院楼基础组合隔震体系隔震性能分析  

Isolation Performance Analysis of A Base Isolation System for A Hospital Building

作　　者：钟玉成 曾倬 张晖[3] ZHONG Yucheng;ZENG Zhuo;ZHANG Hui(Department of Disaster Mitigation for Structures,Tongji University, Shanghai 200092, China;Shanghai Shimao Yixin Belief Industry Co.,Ltd., Shanghai 200120, China;Shanghai Architectural Design Research Institute Co.,Ltd., Shanghai 2001250, China)

机构地区：[1]同济大学结构防灾减灾工程系,上海200092 [2]上海世茂翊信置业有限公司,上海200120 [3]上海建筑设计研究院有限公司,上海200040

出　　处：《结构工程师》2019年第4期82-89,共8页Structural Engineers

摘　　要：组合隔震技术的应用,能充分发挥不同类型隔震支座的优势,达到最佳的隔震效果。对此,以上海某医院一住院楼为研究对象,将天然橡胶支座、铅芯橡胶支座、弹性滑板支座组合成6类隔震体系。将这6类隔震体系进行弹塑性时程计算,分析比较了不同隔震体系下的水平向减震系数、隔震支座最大位移、楼层位移和层间位移角、抗风承载力验算计算结果。分析结果表明,组合隔震体系相对单隔震支座体系有更好的隔震性能;铅芯橡胶支座对隔震层位移的减小效果最为明显。The adopting of combined seismic isolation technology is able to bring the advantages of different types of isolation bearings into full play so that the best effect of seismic isolation can be achieved.For this study,it combined LNR,LRB and ESB into six types of seismic isolation system.Then it carried out elastic-plastic time-history analysis to the seismic isolation system,and pointed out the analysis and comparison the results of the calculation under different seismic isolation such as horizontal seismic isolating coefficient,maximum displacement of isolation bearings,storey displacement and relative storey displacement and calculation of wind load-bearing capacity,etc.It was shown through the results of analysis that the combined isolation system has better effect of isolation compared with the single isolation bearing system;it has the most significant effect of reducing the displacement of the seismic isolation layer in LRB.

关 键 词：基础组合隔震 隔震体系 复杂高层结构 隔震性能 水平向减震系数 

分 类 号：TU352.12[建筑科学—结构工程]