摘要
以某一简化的四桩腿对角型导管架平台为例,利用大型有限元非线性软件ABAQUS的AQUA模块进行波浪力和流力计算,并进行非线性倒塌分析(Nonlinear PushoverAnalyses)。分别计算了四种不同工况下平台在完整模式下和单个构件失效后的极限承载力以及单个构件失效后平台结构的剩余强度系数,以分析单个构件失效对导管架平台极限承载力的影响,为导管架平台的结构整体安全和风险评估提供一种准确而行之有效方法。
By taking a simplified diagonal jacket platform for example, the wave and fluid forces are calculated and a nonlinear pushover analyses of the platform is made with the large-scale nonlinear FEA software ABAQUS/AQUA. The ultimate strength of intact platform and platform with each of its component being destroyed and the residual resistance factor of the platform with each of its component being destroyed are calculated respectively to analyze the influence of member failure on the ultimate strength of jacket platform. Thus an accurate and effective method of evaluating the safety and risk of integral structure of jacket platform is provided.
出处
《中国海洋平台》
2006年第5期27-33,共7页
China offshore Platform
关键词
导管架平台
极限承载力
有限元解
jacket platform, ultimate strength, ABAQUS/AQUA,modified riks algorithm
