同济大学学报（自然科学版）2013，Vol.41Issue(6)：821-825,5.DOI:10.3969/j.issn.0253-374x.2013.06.004
正交异性钢桥面板栓焊接头疲劳性能
Fatigue Behaviour of Bolt-welded Joints for Uribs in Orthotropic Steel Bridge Decks
摘要
Abstract
Two orthotropic steel decks with on-site boltwelded U-rib connection detailing were designed and fabricated.Static and fatigue tests were then conducted.A finite element (FE) model of the bolt-welded joints was proposed.The FE analysis showed that the longitudinal stresses on the inner connection plate were larger than those on the outer plate,and the stresses were influenced by the out plane bending in the joints.Stress distributed along the connection plate in saddle-like shape.The stresses in the middle-region were larger than those in the end,and fatigue cracks appeared earlier in the middle-region of the inner connection plate in the both specimens.The fatigue strength of bolted U-ribs joint is proposed based on the design curve of category 71 in Eurocode or the design curve of category Ⅸ in the Design Code of Steel Railway Bridges.A parameter study was developed to optimize and improve the fatigue performance.关键词
正交异性钢桥面板/栓焊连接/疲劳试验/有限元分析Key words
orthotropic steel bridge deck/ bolt-welding connection/ fatigue test/ finite element(FE)analysis分类
交通工程引用本文复制引用
顾萍,颜兆福,盛博,陈世鸣..正交异性钢桥面板栓焊接头疲劳性能[J].同济大学学报（自然科学版）,2013,41(6):821-825,5.基金项目
国家自然科学基金(51078290) （51078290）
