Abstract: According to the velocity of ship collision with the non-navigable passage piers of the Arkansas River Bridge in U. S. and the Guangdong Jiujiang Bridge in China, the method proposed in American Road and Bridge Desig Code that the ship speed declines proportionally to the distance that the ship migrates from the shipping route is questioned. The conclusion that the ship velocity won＇t stall when ship loses rudder is brought forth thereafter. Combining with the anti-ship collision study on the Anqing Yangtze River Railway Bridge, several meaningful ideas are put forward for the speed selection and the confirmation of the ship collision force with bridge and the number of piers which need to be established for bridge anti-collision, and the discussion on the anti-collision scheme are also explored.

Key words: Anqing Yangtze River Railway Bridge , velocity of ship collision with bridge , ship collision force with bridge , equipment for bridge anti-collision ;

摘要： 根据美国阿肯色河桥和广东九江大桥船撞非通航孔桥墩时的速度,质疑美国公路桥梁设计规范中??船偏离航 线速度正比下降的方法。符合实际地总结出??失舵不失速的工况,结合安庆铁路桥的防撞研究,对船撞桥速度的 选取、船撞力和需设防桥墩数目的确定提出了见解,并对防撞方案进行了探讨。

关键词: 安庆铁路桥, 船撞桥速度, 船撞力, 防撞设施