隔震结构设计加速度反应谱的取值研究

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 181-187.

论文

隔震结构设计加速度反应谱的取值研究

刘文光1;何文福1;霍达2;李婕3;冯德民4

作者信息 +

THE VALUE OF LONG PERIOD PART OF DESIGN RESPONSE SPECTRA FOR ISOLATED STRUCTURES

Liu Wenguang1;He Wenfu1;Huoda2;Li Jie3;Feng Demin4

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文章历史 +

摘要

本文分别采用中国、日本和美国三国规范中定义的等效线形化法和时程分析方法，基于单质点模型计算了不同周期隔震结构的地震反应。通过加速度反应和位移反应发现中国现行抗震设计规范中设计反应谱的长周期段反应谱偏大。文中根据加速度反应谱的时程分析结果，在现有设计反应谱的基础上提出了新的长周期段反应谱修正公式提案。文末采用新提案的设计反应谱，利用等效线形化法对隔震结构进行了地震反应分析，结果与时程分析法的分析结果一致，研究表明新提案的反应谱取值在进行隔震结构的地震反应分析时具有良好的计算精度。

Abstract

Based on the single-mass model, the earthquake response of different natural period isolation structure are analyzed by using the equivalent linear method and time history analysis method according to the China, Japan and USA code in the paper. Through the comparison of acceleration response spectra, it is found that the response spectrum in long period part of design response spectrum of China code is too large. According to the results of time history analysis, the modified equation to the long period part is proposed based on the original acceleration response spectrum. In the end of the paper, the earthquake response of isolation structure is compared by using the new suggestion modified acceleration response equation and time history analysis method, and the results obtained with the modified long period response spectrum is consist with the results of time history analysis. The response analysis results by using the suggestion equation of response spectrum value have ideal higher analysis precise for isolated structures.

导出引用

刘文光;何文福;霍达;李婕;冯德民. 隔震结构设计加速度反应谱的取值研究[J]. 振动与冲击, 2010, 29(4): 181-187

Liu Wenguang;He Wenfu;Huoda;Li Jie;Feng Demin. THE VALUE OF LONG PERIOD PART OF DESIGN RESPONSE SPECTRA FOR ISOLATED STRUCTURES[J]. Journal of Vibration and Shock, 2010, 29(4): 181-187