中小跨径国省道桥梁典型病害的防治措施

Control Measures for Typical Diseases of Bridges with Small and Medium-Sized Span on National and Provincial Roads

近年来,随着交通运输业的迅猛发展,国省道路网的不断完善,中小跨径桥梁作为国省道公路常见的构造物之一,在国省道路网中的重要作用日益显著。随着预制装配式施工的迅速发展,预制装配式空心板桥在国省道中小跨径桥中的应用也越来越多。但受环境、设计、施工、管养等多方面因素的影响,中小跨径桥梁在后期运营过程中出现了不同程度的病害,影响桥梁结构的安全性和耐久性。如何准确判断病害类型,分析病害成因,采取针对性的防治措施尤为重要。

in recent years,with the rapid development of transportation industiy and the continuous improvement of national and provincial road network,as one of the common structures of national and provincial roads,small and medium-sized span bridges play an increasingly important role in the national and provincial road network.With the rapid development of prefabricated construction,prefabricated hollow slab bridge is more and more used in small and medium span bridges of national and provincial roads.However,under the influence of environment,design,construction,pipe maintenance and other factors,diseases of different degrees appear in the late operation process of small and medium-sized span Bridges,which affects the safety and durability of bridge structures.How to accurately judge the type of disease,analyze the causes of disease,and take targeted control measures is particularly important.