【摘要】 运用等效线性化方法分析了地基土－非线性单自由度结构相互作用体系的随机临界地震激励和随机临界地震响应，并针对一个单自由度水塔结构进行了具体的数值计算，选择方差相同的过滤白噪声随机地震动作为输入，计算了该体系的随机地震响应，并验证了随机临界地震响应分析法的实用性．更多还原

【Abstract】 In this paper, the authors analyze the random critical seismic response of the Soil--SDOF nonlinear interaction system using the equivalent linearization method. As a numerical example,.the authors analyze the random critical seismic response of a water tower structure. By comparision with the response of the structure under the stationary filter white noise excitation, the method of random critical seismic response analysis is evaluated.更多还原