核电站辅助厂房结构体系的随机临界地震响应

以某核电站工程为背景，建立了地基土－核电站辅助厂房结构相互作用体系的运动方程，并求出其频率响应函数，将随机临界地震响应分析法引入多自由度相互作用体系，分析在单向地震输入下，体系的随机临界地震响应，并和相同能量单向地震输入下体系的随地地震响应相比较，从而对随机临界地震响应分析法的实用性作一定量评估。

Random Critical Seismic Response Analysis of Soil-Auxiliary Factory Buildings of the Nuclear Power Plant Interaction System

In this paper, the authers formulate the motion equation of the soil-auxiliary factory building of the nuclear power plant interaction system, and then the frequency response functions of the system are conducted. By using themethod of random critical seismic response analysis, the authors analyze therandom critical seismic response of the interaction system subjected to a singleseismic input along x direction. By comparing the response of the system under theseismic input along x direction with the same variance, the method of randomcritical seismic response analysis is evaluated.