桥梁墩身避碰承台轮廓设计研究

墩身抗撞能力远不及承台，没有必要使墩身像承台一样抗撞，只要结构尺寸合理就能达到墩身避碰目的。本文根据船首形状，吃水，碰撞变形，桥墩形状和水文条件等，建立墩身避碰数学模型，以例验证。

The Design Research on Bearing Desk Contour for Collision Avoidance of Bridge Pier Body

The anti-impact ability of pier body is far inferior to bearing desk.It is not necessary that pier body has the same impact resistance as bearing desk.The purpose of the collision avoidance can be attained so long as the pier body has a reasonable size. The establishment of the mathematical model of collision avoidance which was validated by an example,according to ship bow forms, draughts, collision deformation,bridge pier shapes and hydrology conditions, etc. is described in the paper.