- 摘 要
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（同濟大學建筑設計研究院（集團）有限公司， 上海 200092）
［摘要］針對彈簧隔振結構具有豎向隔震性能佳、水平減震性能不足的特點，提出一種帶水平向黏滯阻尼器的彈簧支座隔振結構，將彈簧支座與黏滯阻尼器組合，既能滿足豎向隔振需求，又能在水平向達到減震效果。以上音歌劇院為工程背景，主要研究帶水平向黏滯阻尼器的彈簧支座隔振結構的抗震性能。首先通過彈簧支座方案與無隔振方案的對比，得到彈簧支座隔振結構豎向隔振效果顯著、水平隔震效果不佳的結論;提出“彈簧隔振支座+黏滯阻尼器”的組合隔振方案，通過詳細的方案對比證明組合隔振結構在受力和變形控制上的優(yōu)越性；對整體結構進行罕遇地震下抗震性能分析，結果表明隔振彈簧可正常工作，黏滯阻尼器發(fā)揮良好耗能作用，整體結構處于較優(yōu)的性能狀態(tài)。
［關鍵詞］隔振彈簧； 黏滯阻尼器； 豎向隔振； 水平隔震； 組合隔振
中圖分類號：TU398-7文獻標識碼：A文章編號：1002-848X(2020)03-0066-06
Study on seismic performance of structure with vibration-isolating spring bearings and horizontal viscous dampers
Wu Honglei
（Architectural Design and Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China）
Abstract:For the reason that the spring performs well at vertical isolation but insufficiently at horizontal earthquake dissipation, a design method of combined vibration-isolating was proposed, which combined spring bearing with horizontal viscous damper to meet the vertical vibration isolation requirements and achieve the earthquake dissipation in the horizontal direction. Based on the opera house of Shanghai Conservatory of Music, the seismic performance of structure with vibration-isolating spring bearings and horizontal viscous dampers was studied. Firstly, the spring bearings scheme and the non-spring bearings scheme were compared, showing that the structure with vibration-isolating spring bearings was more effective in vertical vibration isolation and less effective in horizontal earthquake isolation. Then the combined vibration isolation scheme used vibration-isolating spring bearings combined with viscous dampers was proposed, and was proved to work well in controlling the structural force and deformation via comparing different schemes in detail. Lastly, the seismic performance of the structure under the rare earthquake was analyzed. The result shows that the vibration-isolating spring work normally, and the viscous dampers dissipate energy well and the whole structure performs better.
Keywords:vibration-isolating spring; viscous damper; vertical vibration isolation; horizontal earthquake isolation; combined vibration isolation
作者簡介：吳宏磊，博士，高級工程師，Email：8whl@tjad.cn。
