组合隔震系统的隔震效果研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
在既有建筑的基础和上部结构之间增设隔震层,可以减小上部结构的地震反应,从而"间接"地提高建筑物的抗震能力。通过分析了某一建筑物,分别采用铅芯橡胶支座和组合隔震系统时(滑板与橡胶支座的比例分别为1∶6、1∶4和1∶3)的地震反应,并把它们与非隔震时的地震反应进行比较,研究了各种工况的隔震效果,分析了支座比例与减震系数之间的关系。研究结果表明:采用组合隔震系统加固既有建筑,能够减小上部结构的地震反应;而且在支座总数量中滑板支座比例越大,隔震效果越明显。
Adding isolation system between the upper structure and foundation of an existing building could reduce the seismic response of the former,accordingly,its seismic capacity could be improved indirectly.In this research,the seismic responses of a building with lead rubber bearing or a combined system(the proportions between the sliding and lead rubber bearings were 1/6,1/4 and 1/3) was respectively analyzed and compared to that of the building without base isolation system to investigate the seismic isolation effect.The relationship between isolation coefficient and the proportion of bearings was studied.The results show that strengthening the existing building with combined system can reduce the seismic response of the upper structure,and that it is more effective if the leading bearing is relatively more.
引文
[1]周锡元,韩淼,李大望,等.并联与串联基础隔震体系地震反应的某些特征[J].工程抗震,1995,17(4):1-5.
    [2]吕西林,朱玉华,施卫星,等.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43-49.
    [3]朱玉华,吕西林.组合基础隔震系统地震反应分析[J].土木工程学报,2006,37(4):77-81.
    [4]杨树标.复合隔震结构地震反应的简化计算[J].世界地震工程,2001,17(2):65-69.
    [5]李爱群,毛利军.并联基础隔震体系地震反应特征与隔震层参数的优选[J].工程抗震与加固改造,2005,27(2):27-31.
    [6]荣强,程文瀼.并联基础隔震体系的参数优化[J].工程力学,2009,26(10):148-154.
    [7]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
    [8]党育,杜永峰,李慧.基础隔震结构设计及施工指南[M].北京:中国水利出版社,2007.
    [9]范夕森,苏小卒,张鑫,等.组合隔震系统力学性能试验研究[J].建筑结构学报(增刊2),2010,31:50-55.
    [10]刘小煜,施卫星,徐磊.组合支座隔震结构及其动力反应分析[J].工程力学(增刊),2001:154-158.
    [11]范夕森,徐红云,任淑珍,等.历史建筑的隔震加固技术研究[J].山东建筑大学学报,2010,25(3):255-258.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心