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Stress Analysis and Fatigue Evaluation on Orthotropic Steel Bridge Deck
| 题名： | Stress Analysis and Fatigue Evaluation on Orthotropic Steel Bridge Deck |
| 正文语种： | 中文 |
| 作者： | ohai Ji Rong Liu Manman Wang Jiandong Zhang Hirofumi Maeno |
| 作者单位： | ollege of ivil and Transportation Engineering, Hohai University, Xikang Road 1＃, Nanjing, P.R. hina Jiangsu Transportation Research Institute o., LT , hengxin Road 2200#,Jiangning Science Park, Nanjing, P.R. hina ollege of ivil and Transportation Engineering, Hohai University, Xikang Road 1#, Nanjing, P.R. hina;Jiangsu Transportation Research Institute o., LT , hengxin Road 2200#,Jiangning Science Park, Nanjing, P.R. hina |
| 关键词： | Orthotropic steel deck welded joint fatigue crack hot spot stress fatigue damage reduction factor |
| 摘要： | Orthotropic steel bridge deck has lighter self-weight,faster fabrication in bridge factory and erection during construction.It is applied widely in steel bridges both in China and Japan.However,fatigue cracks have been detected in the welded joints of some steel bridges,within the range of their designed service life.In this paper,stress of the trough-deck welded joint is analyzed with FEA (finite element analysis),and fatigue strength is investigated.Firstly,both shell and solid finite element models are compared with different mesh sizes.Secondly,hot spot stress is discussed at two points,one is bottom of the deck plate near the toe-weld and the other is trough-rib near the toe-weld.Finally,stress under the moving unit wheel load is studied.Fatigue damages,under the truck load,are evaluated based on the hot spot stress method.Fatigue damage reduction due to distribution of transverse location of a vehicle is discussed. |
| 会议日期： | 20130417 |
| 会议举办地点： | 北京 |
| 会议名称： | 第六届中国公路科技创新高层论坛 |
| 出版日期： | 2013-04-17 |
| 母体文献： | 第六届中国公路科技创新高层论坛论文集 |
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