既有公路桥梁防船撞加固技术研究

Research on Anti-ship Collision Reinforcement Technology for Existing Highway Bridges

摘要:

近年来，随着水上交通运输的快速发展，船桥碰撞事故不断发生，因此既有桥梁如何进行防船撞加固变得越来越重要。考虑现行规范中关于既有公路桥梁防船撞加固的内容较少，缺少工程重难点分析，结合工程实践案例和相关规范提出既有公路桥梁防船撞加固技术路径和加固体系，通过某项目工程案例进行流程说明，并采用MIDAS Civil软件进行船撞加固后结构验算。结果表明提出的技术路径和加固措施科学合理，可为后续防船撞加固相关工程提供指导和借鉴。

Abstract:

In recent years, with the rapid development of water transportation, the collision accidents between ships and bridges have been occurring continuously. Therefore, how to reinforce existing bridges to prevent ship collisions is becoming increasingly important. Considering that the current standards have relatively few provisions regarding the anti-ship collision reinforcement of existing highway bridges and the lack of analysis on the key and difficult points of the project, and combined with the engineering practice cases and relevant specifications, a technical path and system for the reinforcement of existing highway bridges against ship collisions are proposed. The process is explained through a project case, and the MIDAS Civil software is used for structural verification after the ship-collision reinforcement. The results indicate that the technical path and reinforcement measures proposed are scientifically reasonable, which can provide the guidance and reference for subsequent anti-ship collision reinforcement projects.