| 土-结构动力相互作用对隔震结构影响的模态分析方法 |
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| 引用本文： | 李海岭,葛修润.土-结构动力相互作用对隔震结构影响的模态分析方法[J].振动与冲击,2000,19(3):63-67. |
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| 作者姓名： | 李海岭 葛修润 |
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| 作者单位： | 中国科学院武汉岩土力学研究所,武汉,430071 |
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| 摘 要： | 本文将频域模态分析方法推广到土－结构动力相互作用对基础事震结构的影响分析下。基于上部结构固定时具有正则型的假设下，推导了地震激励作用下，土－结构动力相互作用对基础隔震结构影响的频域模态分析的步骤。算例表明，采用低阶模态进行计算，得到较高精度的分析结果的同时，可以有效地减少计算时间。
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| 关 键 词： | 土－结构动力相互作用 模态分析 隔震结构 |
| 修稿时间： | 1999-08-30 |
MODAL ANALYSIS OF BASE-ISOLATED BUILDINGS CONSIDERING DYNAMIC SOIL-STRUCTURE INTERACTION |
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| Li Hailing,Ge Xiurun.MODAL ANALYSIS OF BASE-ISOLATED BUILDINGS CONSIDERING DYNAMIC SOIL-STRUCTURE INTERACTION[J].Journal of Vibration and Shock,2000,19(3):63-67. |
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| Authors: | Li Hailing Ge Xiurun |
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| Abstract: | Modal analysis in frequency domain is used to analyze the effect of soil-structure interaction on the vibration of base-isolated buildings.Based on the assumption that with the upper part fixed the structure possesses classic normal modes,analysis procedure is deduced when the stracture is under earthquake excitation.Computational results illustrate that good approximation can be achieved with less computational effort by applying the first few vibration modes. |
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| Keywords: | dynamic soil-structure interaction base-isolation modal analysis in frequency domain |
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