构件不同直线度对导管架平台极限承载力的影响  

Influence of Different Straightness of Component on Ultimate Bearing Capacity of Jacket Platform

作　　者：王维刚[1] 白迎彬 胡宇坤 王威[1] 张蒙 WANG Weigang;BAI Yingbin;HU Yukun;WANG Wei;ZHANG Meng(Structural Inspection/Monitoring and Evaluation Laboratory of Offshore Platform,Northeast University of Petroleum,Daqing 163318,Heilongjiang,China)

机构地区：[1]东北石油大学海洋平台结构检/监测评价实验室,黑龙江大庆163318

出　　处：《中国海洋平台》2023年第3期63-67,78,共6页China offshore Platform

基　　金：中国石油天然气集团公司“十三五”科学与技术开发项目(编号:2016A-1007);东北石油大学青年科学基金(编号:2019QNL-39)。

摘　　要：针对传统导管架平台在进行极限承载力分析时未考虑构件直线度缺陷对结果的影响问题,采用非线性逐步倒塌的分析方法研究构件不同直线度对导管架平台极限承载力的影响。根据直线度公式建立不同构件直线度导管架平台有限元模型,考虑导管架平台环境载荷作用,采用非线性倒塌分析方法计算导管架平台极限承载力。结果表明,导管架平台在45°方向强度储备能力最差,构件不直度使其极限承载力严重退化。To solve the problem of the traditional jacket platforms not considering the impact of component straightness defects on the results in ultimate bearing capacity analysis,the influence of different straightness of components on the ultimate bearing capacity of jacket platform is studied by nonlinear progressive pushover analysis method.The finite element models of the jacket platforms with different straightness are established according to the straightness formula.The environmental load of the jacket platforms is considered.The ultimate bearing capacity of the jacket platforms is calculated by nonlinear pushover analysis method.The results show that the strength reserve capacity of the jacket platform is the worst in the direction of 45°,and the ultimate bearing capacity of the jacket platform is seriously degraded by the out of straightness of component.

关 键 词：导管架平台 构件直线度 极限承载力 非线性倒塌分析 

分 类 号：TE95[石油与天然气工程—石油机械设备]