铁道科学与工程学报2011，Vol.8Issue(2)：34-39,6.
正交异性板U肋与桥面板焊缝连接的静力及疲劳试验研究
Static and fatigue test research on welded rib- to- deck connections in steel orthotropic bridge deck
摘要
Abstract
In order to investigate the static and fatigue behaviors of the welded rib - to - deck connections in steel orthotropic bridge deck, 14 rib -to -deck connection specimens were designed considering the weld types, butt gap, welding method and loading position as parameters. The static test and fatigue test were carried out to obtain the fatigue cycle number of each specimen under different stress range. Based on the statistical regression analysis, the S - N curves and fatigue classification of the rib - to - deck connections welded with fillet weld and partial penetration weld were obtained respectively. The test results show that the initial fatigue crack of the fillet weld is easily appeared at the weld root of the rib, while the initial fatigue crack of the penetration weld is easily appeared at the weld root of the deck.关键词
正交异性板/疲劳试验/疲劳裂纹/应力幅/S-N曲线Key words
orthotropie bridge deck/ fatigue test/ fatigue crack/ stress range/ S -N curve分类
交通工程引用本文复制引用
田洋,李运生,张德莹,戴运良..正交异性板U肋与桥面板焊缝连接的静力及疲劳试验研究[J].铁道科学与工程学报,2011,8(2):34-39,6.基金项目
铁道部科技研究开发计划项目(2009G003-C （）
2010G004-J) （）
