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(中國建筑設(shè)計研究院聯(lián)安建筑設(shè)計公司 北京 100044)
【提要】結(jié)合某工程實例,全面闡述了基礎(chǔ)隔震技術(shù)的應用。采用結(jié)構(gòu)分析軟件SAP2000和ETABS對主體結(jié)構(gòu)進行了空間模型的時程分析,隔震房屋和非隔震房屋的計算結(jié)果表明,采用隔震措施可以顯著降低上部結(jié)構(gòu)的地震反應,隔震結(jié)構(gòu)在大震作用下其水平變形基本處于彈性狀態(tài),具有較好的抗震性能。通過對隔震及非隔震結(jié)構(gòu)模型的地震模擬振動臺試驗,驗證了計算分析的正確性和隔震結(jié)構(gòu)的安全性,為隔震技術(shù)在類似建筑中的廣泛應用提供了一個良好實例。
【關(guān)鍵詞】 基礎(chǔ)隔震 空間模型 時程分析 振動臺試驗
Application of Isolation Technology on Intergreated Public Building in Beijing/Li Kailun(L.A. International Ltd.,China Architecture Design & Research Group,Beijing 100044,China)Abstract:Based on an engineering,the application of base isolation technology is presented.The nonlinear spatial model time history analysis of the structure is investigated by SAP2000 and ETABS structure analysis software.Through the analysis and comparison of the computational results of isolated building and the one nonisolated building,the calculation results of the structure show that the horizontal earthquake action upon the upper structure can be greatly reduced by using base isolation technique,and the horizontal distortion of the isolated building keeps elastic state under very rear earthquakes and has excellent aseismic behavior.In addition,the earthquake simulation shaking table tests of the isolated and nonisolated structural model are finished.The accuracy of calculation analysis and the security of isolated structure are verified.
Keywords:baseisolation; spatial model; timehistory analysis; shaking table test