老旧桥梁改造再利用技术

Reconstruction and Reuse Technology of Old Bridge

对旧桥可再利用部位进行分析,对旧桥T梁外观质量、混凝土强度、钢筋保护层厚度、钢筋锈蚀电位、预拱度、承载能力进行检测评定,了解T梁性能情况,为再利用提供依据。根据新桥功能需求及建设条件,结合旧桥可再利用的T梁,对旧桥纵坡坡度进行调整,对旧桥附属设施进行改造,得到合理的新桥设计方案。

The reusable parts of the old bridge were analyzed.The appearance quality,concrete strength,steel protective layer thickness,steel corrosion potential,camber and bearing capacity of the old bridge T-beam were tested and evaluated.The performance of T-beam was understood to provide a basis for reuse.According to the functional requirements and construction conditions of the new bridge,combined with the reusable T-beam of the old bridge,the longitudinal slope gradient of the old bridge was adjusted,and the auxiliary facilities of the old bridge were reformed to obtain a reasonable new bridge design scheme.