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近年来,随着交通量的增大,超限运输车辆的增多,对公路桥梁的通行能力和承载能力要求越来越高。而在农村公路很多桥梁仍在超龄使用,旧桥老化、破损现象严重,相当一部分三、四类桥梁都在正常通行,使农村公路存在较大的安全隐患。如何破解困难,在现有形势下更好的管理、养护现役桥梁,维持桥梁的完好工作状态,延长桥梁使用寿命,应当引起公路管理部门高度重视。对现阶段农村公路桥梁养护的现状、桥梁各部位检查的方法和桥梁养护预防措施等作了介绍。
In recent years, with the increase of traffic volume, the increase of overloaded transport vehicles, the increasing demands on the capacity and carrying capacity of highway bridges. However, many bridges in rural roads are still being over-aged. The aging of old bridges and the damage are serious. A considerable part of the third and fourth types of bridges are in normal circulation, making rural roads have greater potential safety problems. How to solve the difficulties, how to better manage and maintain the existing bridges under the current situation, maintain the intact working conditions of the bridges and extend the service life of the bridges should be given high priority by the highway administrations. This paper introduces the current situation of the maintenance of rural road bridges, the inspection methods of all parts of bridges and the preventive measures of bridge maintenance.