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正交异性钢桥面板足尺节段疲劳模型试验研究 被引量:69

Experimental study on fatigue features of orthotropic bridge deck through full-scale segment models
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摘要 正交异性钢桥面板疲劳问题突出,试验研究是评估其疲劳性能并揭示其疲劳特性的重要途径。以港珠澳大桥钢箱梁为研究对象,通过足尺节段模型对于正交异性钢桥面板的疲劳强度及其疲劳性能评估的关键问题进行试验和理论研究。采用足尺节段模型对多个关键疲劳易损部位进行疲劳试验研究;通过多点异步加载模拟行车效应对于结构疲劳特性的影响;采用在模型不同位置加载的方式验证各关键疲劳易损部位在设计寿命期内的抗疲劳安全性;在此基础上对于重要疲劳易损部位的疲劳性能进行试验和理论研究,探讨关键疲劳易损部位的疲劳强度及其疲劳性能评估的名义应力法和热点应力法。研究结果表明,港珠澳大桥正交异性钢桥面板的疲劳性能满足设计要求且有一定的安全储备;各关键疲劳易损部位的疲劳特性和疲劳强度存在显著差异,热点应力法适用于正交异性钢桥面板关键疲劳易损部位的疲劳性能评估。 Model test is an important approach to evaluate fatigue resistance and reveal the fatigue characteristics of steel orthotropic bridge deck. Taking the steel box girder of the Hong Kong-Zhuhai-Macao Bridge as research objects,the key issues of fatigue strength and fatigue performance evaluation of steel orthotropic bridge deck were studied by full-scale girder segment model tests and theoretical study. The full-scale girder segment model were designed to study multiple fatigue details simultaneously. The influence of vehicle loading effects on structure fatigue was studied by a multi-point asynchronous loading scheme. The fatigue properties of vulnerable details were verified by the way of loading on different positions of model in design lifetime. Furthermore,fatigue properties tests and theoretical study on typical fatigue vulnerable details were carried out. Then the fatigue strength and fatigue properties evaluation of typical fatigue vulnerable details were investigated by the hot spot stress method. The results indicate that the fatigue properties of orthotropic steel decks of the Hong Kong-Zhuhai-Macao Bridge satisfy the requirements of design and have a certain safety margin. The fatigue strength and fatigue properties of typical fatigue vulnerable details are significantly different.The evaluation of fatigue resistance of typical fatigue vulnerable details of steel orthotropic bridge deck is feasible by hot spot stress method.
机构地区 西南交通大学
出处 《土木工程学报》 EI CSCD 北大核心 2015年第4期72-83,共12页 China Civil Engineering Journal
基金 国家科技支撑计划(2011BAG07B03) 国家自然科学基金(51178394) 中央高校基本科研业务费专项资金(2682014CX078)
关键词 正交异性钢桥面板 疲劳试验 足尺模型 疲劳强度 疲劳性能 热点应力法 orthotropic bridge deck fatigue model test full-scale model fatigue strength fatigue property hot spot stress method
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  • 1Wolchuk R. Design Manual for Orthotropic Steel Plate Deck Bridges[M]. American Institute of Steel Construction, 1963.
  • 2土木学会鋼構造委員会.厚板溶接继手に関调する查研究小委员会報告書[R].日本:2007.
  • 3曾志斌.正交异性钢桥面板疲劳裂纹分类和加固技术[R].北京:中国铁道科学研究院铁道建筑研究所,2008.
  • 4BS EN 1993 -1- 9 : 2005 Eurocode 3..Design of Steel Structures Part 1 -9: Fatigue[S]. British: European Committee for Standardization, 2005.
  • 5渡辺直起,山田聡,山田健太郎,等.鋼床版デツキプレ-トと垂直補剛材溶接部の疲労强度と補修工法の効果[J].トピ一鉄構技報,2007,23.
  • 6石川誠,满江慶久,江崎正浩.鋼床版の新しい治療法-垂直補剛材上端の補修方法-[J].川田技報,2007,26.
  • 7GURNEY T. Fatigue of Steel Bridge Decks : State-of-the-art-review [ M]. Blue Ridge Summit: BernanPress,1993.
  • 8WOLCHUK R. Lessons from Weld Cracks in Ortho-tropic Decks on Three European Bridges [J]. Journalof Structural Engineering, 1992,116(1) :75-84.
  • 9WANG Chun-sheng, FENG Ya-cheng. Review of theFatigue Behaviours and Finite Element Analysis ofOrthotropic Steel Bridge Decks[C]//ASCE. Proceed-ings of 2008 International Orthotropic Bridge Confer-ence. Sacramento : ASCE,2008 : 290-304.
  • 10XU Wei,ZHANG Xiao-ning. Analysis Distress Char-acters and Design of Steel Orthotropic Bridge DecksPavement in China[C]//ASCE. Proceedings of 2008International Orthotropic Bridge Conference. Sacra-mento :ASCE, 2008 : 184-192.

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