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工程力学  2015 

等强残余位移系数谱研究

DOI: 10.6052/j.issn.1000-4750.2013.07.0704, PP. 163-167

Keywords: 单自由度体系,残余位移系数,弹塑性动力时程分析,强度折减系数,最大位移

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Abstract:

针对双线性单自由度体系定义了残余位移系数,然后选取100条地震波,通过弹塑性动力时程分析,建立了等强残余位移系数谱,分析了其影响因素,并建立了拟合公式,最后对残余位移和最大位移之间的关系进行了研究。结果表明:在总体上,结构周期越小,强度越低,屈服后刚度系数越小,其残余位移系数越大;结构周期较大时,残余位移系数和周期之间关系不大;结构周期越小,结构强度对残余位移系数的影响越大;残余位移和最大位移基本呈线性关系。

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