摘要
在一般结构系统可靠性分析中往往只考虑构件塑性破坏的单一模式。本文针对海上平台的工作环境及结构形式特点分析探讨了构件的其它一些破坏模式。实例计算及其与常规结果的比较表明,在评估海洋平台结构整体安全性能时,如果只考虑构件塑性破坏一种条件,则所得到的结构系统可靠性指标值就可能较为危险,这在实际工程计算时应给予注意。
Generally ,only the plastic failure mode is considered in system reliability analysis of structures. Based on the working environment of offshore platform and structural feature ,other failure modes of structure are researched in this paper. The comparison between an example calculation and normal result shows that in the case of evaluating the integral safety of a platform structure if only plastic failure mode is taken into account, the resultant reliability target value of the structural system may be dangerous. This shall be paid attention to in actual engineering calculation.
出处
《中国海上油气（工程）》
1996年第1期21-30,共10页
China Offshore Oil and Gas
关键词
整体安全
失效概率
结构系统
可靠性分析
integral safety of platform, failure probability, system reliabilty analysis of structures
