基于倒塌分析法的自升式平台极限承载力研究  

Research on Ultimate Bearing Capacity of Jack-up Unit Based On Nonlinear Push over Analysis Method

作　　者：王艺陶[1] 林一 胡安康[1,2] 蒋玮[1,2] 

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001 [2]中集船舶海洋工程设计研究院,上海201206

出　　处：《中国造船》2015年第1期151-158,共8页Shipbuilding of China

基　　金：国家自然科学基金(51079034);中央高校科研基金(HEUCFR1003)

摘　　要：自升式平台在作业时承受风、浪、流等环境作用。以CIMC400自升式平台为例,基于非线性倒塌分析法和结构参数的随机分布,对平台极限承载力进行确定性以及可靠性分析,并进一步就构件受损和疲劳、腐蚀对平台极限承载力的影响进行了研究,为这类平台的结构设计提出了一些有益的建议。Wind, wave and current are the primary environment loads for a Jack-up unit in operation condition. In this paper, a CIMC400 Jack-up unit iS taken as an example, for which random distributions of structure parameters are considered. Ultimate bearing capacity is evaluated with both deterministic and reliable analysis based on nonlinear push over method. Effects of damaged components, fatigue and corrosion are studied. Finally, several practical suggestions to structure design of this kind of offshore installations are summarized.

关 键 词：自升式平台 倒塌分析 极限承载力 构件受损 疲劳腐蚀 

分 类 号：U661.43[交通运输工程—船舶及航道工程]