Time-Varying Reliability Analysis of Ultimate Strength of Rigid Connectors on Platform With Complex Configuration Under Corrosion Damage

doi:10.19423/j.cnki.31-1561/u.2023.05.106

Ship & Boat ›› 2023, Vol. 34 ›› Issue (05): 106-112.DOI: 10.19423/j.cnki.31-1561/u.2023.05.106

Time-Varying Reliability Analysis of Ultimate Strength of Rigid Connectors on Platform With Complex Configuration Under Corrosion Damage

GAO Jiantao¹, WANG Xizhao², GENG Yanchao², WU Taihui¹, WU Jianguo^1,*

1. College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310023, China;
2. China Ship Scientific Research Center , Wuxi 214082, China

Received:2023-02-15 Revised:2023-04-16 Online:2023-10-25 Published:2023-10-26

腐蚀损伤下复杂构型平台刚性连接器极限强度的时变可靠性分析

郜建涛¹, 王西召², 耿彦超², 吴泰辉¹, 吴剑国^1,*

1.浙江工业大学建筑工程学院杭州 310023;
2.中国船舶科学研究中心无锡 214082

作者简介:郜建涛（1998-）,男,硕士研究生。研究方向：结构工程。王西召（1990-）,男,硕士,高级工程师。研究方向：船舶与海洋结构物安全性评估。耿彦超（1982-）,男,硕士,高级工程师。研究方向：船舶与海洋结构物安全性评估。吴泰辉（1999-）,男,硕士研究生。研究方向：结构工程。通信作者：吴剑国（1963-）,男,博士,教授。研究方向：船舶结构分析与研究。
基金资助:
国家重点研发计划资助项目（2022YFB3306200）

Abstract

Abstract: A calculation method for the bending and torsional ultimate strength of the platform connection surface under corrosion has been proposed by referring the bolt force group analysis method for the connection surface of the rigid connector on a platform with complex configuration, in order to study the influence of the corrosion damage on the ultimate strength of the platform connection surface and evaluate the safety of the connection surface of the platform module with complex configurations. The corrosion parameters of the platform are statistically analyzed, and the probability characteristics of the ultimate strength of the connecting surface are calculated by using the Rosenblueth method. A stochastic time-varying model of the ultimate strength of the platform connection surface considering the corrosion effect is then established. The hydrostatic and wave loads and their probability characteristics of the platform connection surface are also statistically analyzed. The time-varying reliability of the rigid connector under corrosion is finally calculated and analyzed based on the stochastic process theory.

Key words: time-varying reliability of structures, connector, complex configuration platform, ultimate bearing capacity

摘要： 为研究腐蚀损伤对于平台连接面极限强度的影响,评估复杂构型平台模块连接面的安全性,该文针对某复杂构型平台刚性连接器的连接面,参考螺栓群受力分析方法,提出了腐蚀损伤下平台连接面弯曲、扭转极限强度的计算方法;统计了该平台的腐蚀参数,利用Rosenblueth法计算了连接面极限强度的概率特性,建立计及腐蚀作用的平台连接面极限强度随机时变模型;统计了平台连接面所受的静水与波浪载荷及其概率特性;基于随机过程理论,进行了腐蚀损伤下刚性连接器的时变可靠性计算分析。

关键词: 结构时变可靠性, 连接器, 复杂构型平台, 极限承载力

CLC Number:

U661.43

GAO Jiantao, WANG Xizhao, GENG Yanchao, WU Taihui, WU Jianguo. Time-Varying Reliability Analysis of Ultimate Strength of Rigid Connectors on Platform With Complex Configuration Under Corrosion Damage[J]. Ship & Boat, 2023, 34(05): 106-112.

郜建涛, 王西召, 耿彦超, 吴泰辉, 吴剑国. 腐蚀损伤下复杂构型平台刚性连接器极限强度的时变可靠性分析[J]. 船舶, 2023, 34(05): 106-112.

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Time-Varying Reliability Analysis of Ultimate Strength of Rigid Connectors on Platform With Complex Configuration Under Corrosion Damage

腐蚀损伤下复杂构型平台刚性连接器极限强度的时变可靠性分析

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