【摘要】 在各国的规范和设计标准中,都是以“重现期”作为海洋工程环境条件的设计标准。这种方法虽然简便实用,但不易从经济和安全的角度来综合评价一个项目的合理性,特别是对于生存期较短的工程结构,更难以合理选择设计重现期。为了合理解决设计标准问题,本文提出了以结构失效概率为约束条件,以工程结构最低造价为目标函数的海洋环境条件设计标准优化选择法,并以南海北部湾早期生产系统的自升式平台的改装为例,进行了实例分析计算。更多还原

【Abstract】 This paper discusses the long term distribution of wave-current forces on Jack-up platform in the south china Sea, its value analysis and reliability consideration. In order to obtain the optimum environmental design criteria for platform, a new method is proposed in the paper in which the failure probability of structure is chosen as restraint condition and minimum cost of platform construction is calculated as objective function and then a new procedure for optimum selection of environmental design criteria for Jack-up platform in the South China Sea is developed.更多还原