基于能量原理的隔震结构地震响应预测法研究

Gongcheng Lixue/Engineering Mechanics(2011)

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Abstract
建立地震作用下隔震结构在最大地震响应时刻的能量平衡方程,给出隔震结构隔震层和非隔震层的弹性振动能、塑性能的表达式,推导出基于能量平衡的隔震结构地震响应预测式。以顶部隔震、层间隔震、基础隔震结构为仿真对象,利用时程分析法的数值解验证了地震响应预测式的准确性,比较研究了三种隔震结构的抗震性能。结果表明:对于不同的输入地震波,能量法的地震响应预测曲线包络了多数时程分析的结果,能量法能够较准确地预测隔震结构在地震作用下的响应值。
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Key words
earthquake response prediction,theory analysis,isolated structures,energy method,structural engineering,time history analysis,damage radio
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