摘要
在上海某寺院改造项目中,采用普通叠层橡胶支座和弹性滑移支座的混合隔震技术对寺中一座优秀历史建筑——大雄宝殿进行加固保护。介绍了隔震技术的构造措施,建立了大殿的数值模型,通过时程计算得到隔震结构与非隔震结构在多遇、设防、罕遇地震作用下的柱底剪力、大殿整体相对位移和大殿顶部加速度等地震响应,比较并分析了大殿采用隔震技术后的隔震效果。计算结果表明:采用混合隔震技术方案后,大殿的地震响应有较明显的降低,较大地提高了大殿的抗震能力。
In the renovation project of a Shanghai temple, the outstanding historical architecture of the temple hall needs to be protected with seismic isolation technique. The applied hybrid seismic isolation technique combines laminated rubber bearings with elastic sliding bearings. Measures of the seismic isolation technique were introduced and the numerical model of the temple hall was established. The performance of the seismic isolation structure and the primary structure under the frequent earthquake, design earthquake, rare earthquake were compared through time-history analysis of column bottom shear, overall relative displacement and top acceleration. It is found that the seismic response of the seismic isolation structure decreases significantly and the seismic resistance of the temple hall is improved.
出处
《建筑结构》
CSCD
北大核心
2013年第23期67-72,共6页
Building Structure
关键词
木结构古建筑
弹性滑移支座
混合隔震
时程分析
ancient timber structure
elastic sliding bearing
hybrid seismic isolation
time-history analysis
