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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 a monastery renovation project in Shanghai, the hybrid shock isolation technology of ordinary laminated rubber bearings and elastic sliding bearings was used to reinforce the protection of the Great Hall of the Temple, an outstanding historical building in the temple. The construction measures of the isolation technology are introduced and the numerical model of the main hall is established. The shear force of the bottom of the isolated structure and the non-isolated structure can be obtained under the circumstance of frequent encounter, fortification and rare earthquake. The relative displacement of the main hall And the top of the hall acceleration and other seismic response, comparison and analysis of the hall after isolation technology isolation effect. The calculation results show that the seismic response of the main hall is obviously reduced after adopting the hybrid isolation technology scheme, which greatly improves the anti-seismic capacity of the main hall.