海洋桩基平台地震随机响应分析  

STOCHASTIG RESPONSE ANALYSIS OF PILED OFFSHORE PLATFORM TO EARTHQUAKELOAD

作　　者：张立福[1] 罗传信 

机构地区：[1]天津大学海洋工程研究所

出　　处：《海洋工程》1992年第3期74-81,共8页The Ocean Engineering

摘　　要：本文应用地震随机响应分析理论,研究了海洋桩基平台地震随机响应分析方法。该分析方法将强地面运动视为三向平稳白噪声随机过程,同时考虑了桩土相互作用和水与结构的耦联作用。应用该方法对一典型平台进行了计算,并与现行的响应谱法进行了比较,从而验证了本文所述方法的适用性。In this paper, using the theory of stochastic response analysis to earthquake load, the analysis method of stochastic response of piled plaform to earthquake load has been presented. With the method, the strong ground motion is considered as three direc'tion stationary white noise process and the interaction of pile sbid and that of water and structure have been considered. The stochastic response of a ty-pical platform to earthquake load has been computed by the method and compared with the response spectrum analysis method, All thes'e show that the stochastic response analysis method of piled platform to earthquake load is correct.

关 键 词：随机响应 桩基平台 桩土相互作用 振型 功率谱密度函数 耦联 结构阻尼比 位移响应 强地面运动 响应分析 

分 类 号：P75[天文地球—海洋科学]