地震灾后桥梁恢复重建工程设计与施工要点

Design and Construction Essentials of Bridge Restoration and Reconstruction Engineering after Earthquake Disasters

以实际案例为研究对象,研究地震灾后桥梁恢复重建工程设计与施工要点。根据建设场地勘察成果,明确工程基本特点,从设计的角度出发,分析了桥梁结构设计和附属工程设计,针对预制空心板施工、预应力张拉施工、桩基础施工、墩柱桥台施工等关键环节技术要点进行梳理,尽可能保证桥梁设计与施工的良好衔接,减少实施过程中的变更与返工问题,有利于快速完成灾后重建工作,恢复当地交通通行能力。

Taking the actual case as the research object,this paper studies the design and construction key points of post-earthquake bridge reconstruction project.According to the survey results ofthe construction site,the basic characteristics ofthe project are defined,and the design of the bridge structure and auxiliary engineering are analyzed from the perspective of design.The technical points of key links such as prefabricated hollow slab construction,prestressed tensioning construction,pile foundation construction and pier column abutment construction are analyzed,so as to ensure a good connection between bridge design and construction as far as possible.Reducing the change and rework problems in the implementation process is conducive to the rapid completion of post-disaster reconstruction work and the restoration of localtrafficcapacity.