摘要
以一紧邻断裂带高层建筑为例,进行高层建筑基础隔震技术运用相关问题,特别是竖向地震问题的分析研究.采用连接单元和缝单元并联模拟隔震支座,分析水平地震动作用下结构减震系数和隔震层位移;对比竖向地震动作用下规范规定计算方法、振型分解反应谱法和时程分析法计算所得结构内力.结果表明:结构水平向减震效果良好,隔震层位移控制和支座拉压承载力满足要求,反应谱法和时程分析法计算结果更为合理.
In the paper, related researches on an isolated high -rise structure near to fault zone were carried out. Joint element and gap element were connected in parallel to simulate rubber bearing. Seismic isolation coefficient and displacement of the isolation layer under the horizontal earthquake were analyzed. Inner forces of the structure under vertical earthquakes, using specified method in code, modal response spectrum analysis method and time history analysis method, were compared. Results indicate that horizontal isolation effect of the structure is well. Control effect of the displacement of isolation layer and tension and compression bearing capacities of the bearings meet the requirements of the code. Computation results of modal response spectrum analysis method and time history analysis method are much more reasonable.
出处
《福州大学学报(自然科学版)》
CAS
CSCD
北大核心
2014年第1期116-122,共7页
Journal of Fuzhou University(Natural Science Edition)
基金
住房和城乡建设部科技资助项目(2012-K2-40)
福州市科技计划资助项目(榕科2011-S-75)
关键词
近断层
高层建筑
地震反应分析
竖向地震
隔震技术
near fault
high - rise building
seismic response analysis
vertical earthquake
isolated technology