{"title":"正交异性钢甲板疲劳破坏修补焊接维修模拟与试验","authors":"Ping Wang, Xiaosong Yu, Banglong Yu, Yong Liu, Xiaoguo Song, Hongliang Qian, Ke Dong","doi":"10.1111/ffe.70049","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Based on the engineering background of the Hong Kong-Zhuhai-Macao Bridge (HZM Bridge), the fatigue characteristics and operation and maintenance strategies of orthotropic steel decks (OSD) were systematically studied through finite element simulation and high-cycle fatigue (HCF) tests. A finite element model of the OSD segment is established to analyze the influence of unfavorable loading positions of longitudinal and transverse wheel loads on the stress distribution of U-rib-to-deck weld (<i>U</i><sub><i>d</i></sub>), U-rib butt weld (<i>U</i><sub><i>b</i></sub>), and U-rib-to-diaphragm weld (<i>U</i><sub><i>rd</i></sub>) and determine the fatigue dangerous position of welds. The critical crack size of welded components is predicted based on the Failure Assessment Diagram (FAD) method. The HCF testing showed that the fatigue life was reduced by 60% and 30% after toe and deck repair, respectively. Combined with the Paris' law and the damage equivalent coefficient method, the maintenance intervals for toe and deck repairs are 3 and 5.4 years, respectively.</p>\n </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4472-4485"},"PeriodicalIF":3.2000,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simulation and Experiment on Repair Welding Maintenance of Orthotropic Steel Deck Fatigue Failure\",\"authors\":\"Ping Wang, Xiaosong Yu, Banglong Yu, Yong Liu, Xiaoguo Song, Hongliang Qian, Ke Dong\",\"doi\":\"10.1111/ffe.70049\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Based on the engineering background of the Hong Kong-Zhuhai-Macao Bridge (HZM Bridge), the fatigue characteristics and operation and maintenance strategies of orthotropic steel decks (OSD) were systematically studied through finite element simulation and high-cycle fatigue (HCF) tests. A finite element model of the OSD segment is established to analyze the influence of unfavorable loading positions of longitudinal and transverse wheel loads on the stress distribution of U-rib-to-deck weld (<i>U</i><sub><i>d</i></sub>), U-rib butt weld (<i>U</i><sub><i>b</i></sub>), and U-rib-to-diaphragm weld (<i>U</i><sub><i>rd</i></sub>) and determine the fatigue dangerous position of welds. The critical crack size of welded components is predicted based on the Failure Assessment Diagram (FAD) method. The HCF testing showed that the fatigue life was reduced by 60% and 30% after toe and deck repair, respectively. Combined with the Paris' law and the damage equivalent coefficient method, the maintenance intervals for toe and deck repairs are 3 and 5.4 years, respectively.</p>\\n </div>\",\"PeriodicalId\":12298,\"journal\":{\"name\":\"Fatigue & Fracture of Engineering Materials & Structures\",\"volume\":\"48 10\",\"pages\":\"4472-4485\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-08-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fatigue & Fracture of Engineering Materials & Structures\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/ffe.70049\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fatigue & Fracture of Engineering Materials & Structures","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/ffe.70049","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Simulation and Experiment on Repair Welding Maintenance of Orthotropic Steel Deck Fatigue Failure
Based on the engineering background of the Hong Kong-Zhuhai-Macao Bridge (HZM Bridge), the fatigue characteristics and operation and maintenance strategies of orthotropic steel decks (OSD) were systematically studied through finite element simulation and high-cycle fatigue (HCF) tests. A finite element model of the OSD segment is established to analyze the influence of unfavorable loading positions of longitudinal and transverse wheel loads on the stress distribution of U-rib-to-deck weld (Ud), U-rib butt weld (Ub), and U-rib-to-diaphragm weld (Urd) and determine the fatigue dangerous position of welds. The critical crack size of welded components is predicted based on the Failure Assessment Diagram (FAD) method. The HCF testing showed that the fatigue life was reduced by 60% and 30% after toe and deck repair, respectively. Combined with the Paris' law and the damage equivalent coefficient method, the maintenance intervals for toe and deck repairs are 3 and 5.4 years, respectively.
期刊介绍：
Fatigue & Fracture of Engineering Materials & Structures (FFEMS) encompasses the broad topic of structural integrity which is founded on the mechanics of fatigue and fracture, and is concerned with the reliability and effectiveness of various materials and structural components of any scale or geometry. The editors publish original contributions that will stimulate the intellectual innovation that generates elegant, effective and economic engineering designs. The journal is interdisciplinary and includes papers from scientists and engineers in the fields of materials science, mechanics, physics, chemistry, etc.
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