摘要
土层随机地震反应计算是场地地震危险性分析中重要的一环。为了在反应分析中考虑土料动力特性的非线性,本文在原有工作基础上,提出了一种新的直接插值等价线性化法,并与线性系统平稳随机地震响应的确定性算法相结合,形成了一种简便实用的土层随机地震反应分析方法,两个算例表明本文方法具有良好的精度。
It is important that the stochastic seismic responses of soil layers arc made in theseismic risk analysis of the engineering sites.In this paper,a new interpolationequivalent linearization method is proposed to consider the dynamic nonlinearity ofthe soil.By combining the deterministic method,a simple and practical iterativeformulation is formed and the random earthquake responses of soil layers arecalculated.Good agreement with the results from other proceduces confirms theapplicability of the new formulation.
出处
《振动工程学报》
EI
CSCD
1990年第1期56-59,共4页
Journal of Vibration Engineering
基金
国家自然科学基金委员会青年科学基金资助
关键词
地震
随机过程
土层
等价线性化
random processes
seismic response analysis
equivalent linearization
