大跨径预应力混凝土连续梁桥加固研究进展

Research Progress on Reinforcement of Long-Span Prestressed Concrete Continuous Girdge Bridge

基于我国危旧桥改造需求多、病害情况复杂给桥梁加固提出的挑战,需把握桥梁加固国内外的研究现状,为未来深入研究和工程应用提供参考。结合大跨径预应力混凝土连续梁桥主要加固手段的基本原理,对各加固手段的优点、局限性及适用对象进行分析,系统梳理近两年来的最新研究成果,并对未来发展进行了展望。

Based on the challenges posed by the reconstruction of endangered old bridges and complex diseases,it is necessary to grasp the research status of bridge reinforcement at home and abroad,so as to provide references for future in-depth research and engineering application.Based on the basic principles of the main reinforcement methods of long-span prestressed concrete continuous beam bridges,the advantages,limitations and applicable objects of each reinforcement method are analyzed,the latest research results in the past two years are systematically reviewed,and the future development is prospected.