【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。更多还原

【Abstract】 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.更多还原