- 摘 要
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［摘要］基于高位隔震結(jié)構(gòu)的動力特性及影響高位隔震結(jié)構(gòu)隔震效果的主要參數(shù)——頻率比、質(zhì)量比，介紹了地震波的選取及輸入方式和高位隔震結(jié)構(gòu)隔震層、隔震層以上結(jié)構(gòu)、隔震層以下結(jié)構(gòu)的抗震性能目標(biāo)，以及振型分解反應(yīng)譜法中隔震支座等效剛度的計(jì)算方法。采用ETABS軟件對高位隔震結(jié)構(gòu)進(jìn)行計(jì)算分析，采用ETABS中Link單元模擬隔震支座，進(jìn)行了非線性時(shí)程法及振型分解反應(yīng)譜法分析，同時(shí)采用了PKPM等效剪切剛度的計(jì)算方法。經(jīng)過分析，高位隔震結(jié)構(gòu)隔震層以上結(jié)構(gòu)可按降低一度進(jìn)行設(shè)計(jì)，隔震層、隔震層以下結(jié)構(gòu)能夠達(dá)到預(yù)期抗震設(shè)防目標(biāo)，并驗(yàn)證了PKPM簡化計(jì)算方法的可行性。
［關(guān)鍵詞］高位隔震; 時(shí)程分析法； 等效剛度法
中圖分類號：TU352.12文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)09-0135-06
High-position seismic isolation design of the Pingxifu vehicle depot and comprehensive base structures
Huang Yuebin, Yang Zheng, Wan Hongyu, Feng Huijun, Zhu Xinggang（Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:The high-position seismic-isolated structure characteristic and the main parameters：frequency ratio and mass ratios are discussed which effect the isolated structure. The design method is introduced, such as the selection of the earthquake wave and its input methods, the anti\|seismic aims of the isolation layer of structure and the structure above/below the layer, the rubber bearings equivalent stiffness calculation for response spectrum method. The high-position seismic-isolation structure was analyzed by ETABS program, in which simulates rubber bearings by unit Link, and was studied by the nonlinear time\|history method and response spectrum method, and the equivalent shear stiffness of PKPM calculation method was also used. The structure above the isolation layer of the high-position seismic-isolation structure can reduce one degree to design. The isolation layer and the below structure can meet the expected anti-seismic goals. The correctness of the simplified calculation method of PKPM software is veified.
Keywords:high-position seismic isolation; time-history analysis; equivalent share stiffness method
作者簡介：黃躍斌,工程師，Email:aidhero@163.com。
參考文獻(xiàn)
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