跨海大桥桥墩防撞方案设计

以东海大桥桥墩防撞方案设计为背景，论述复杂环境下桥墩防撞设计的基本方法，对比若干可行方案。引入港口工程中常见的大直径薄壁圆筒结构，构造一种新型的桥墩防撞系统，并给出具体构造，其良好的受力条件和地基适应性表明：用于桥墩防撞设施具备一定的可行性。设计构造措施对同类环境下桥梁防撞设计具有一定的参考意义。

Design of ship-bridge collision-prevention for Donghai bridge

The ship-bridge collision-prevention design of Donghai bridge is taken as an example to discussthe design of ship-bridge collision-prevention for the bridge located in complicated environment and severalschemes with feasibilities are compared. Large-diameter thin shell cylindrical structures widely used in the portengineering are introduced to construct a new type of anti-collision system, with detailed structures presented. It canbe a reasonable selection for the ship-bridge collision avoidance system due to the favorable mechanical propertiesand adaptability of foundations of large-diameter thin shell cylindrical structures. The detailed structures of shipbridgecollision avoidance system presented in this paper may provide some reference for the design of ship-bridgecollision avoidance system of bridges under similar environment.