海洋平台结构抗震可靠性时程分析方法  

Aseismic reliability time-history analysis approach for offshore platform structures

作　　者：李海波[1] 吴映栋 

机构地区：[1]浙江大学结构工程研究所,浙江杭州310027 [2]浙江绿城建筑设计有限公司,浙江杭州310013

出　　处：《海洋工程》2004年第2期46-50,共5页The Ocean Engineering

基　　金：浙江省自然科学基金资助项目

摘　　要：将地震运动视为随机过程,建立海洋平台结构在地震作用任一时刻基于剪切变形控制的极限状态方程,应用JC法计算海洋平台结构在地震作用任一时刻的可靠度,得到海洋平台结构抗震可靠度的时程曲线。该方法可满足工程设计的要求,便于工程应用。In this paper, regarding the earthquake motion as a random course, the limit state equations of offshore platform structures are established based on controlling the shear deformation at any time of seismic action, and the reliabilities of offshore platform structures at any time of seismic action are calculated by JC means. Then the aseismic reliability time-history curve of offshore platform structures is gained. It is shown that the result meets the engineering design requirement, and that the method is feasible. Also it is proved that the aseismic reliability analysis approach presented here is rather simple, practical and reliable.

关 键 词：地震运动模型 时程分析 海洋平台结构 抗震可靠性 

分 类 号：P752[天文地球—海洋科学]