我国桥梁大部分为梁桥,随着运营年限和交通量的增加,桥梁结构和性能发生了退化,严重威胁着桥梁的安全。为了保障公路运输的顺畅,本文在分析了梁桥常见的病害及成因的基础上,归纳了影响梁桥安全运行状态的因素,并建立了梁桥安全评价指标体系,为梁桥安全运行状态评估提供了科学依据,从而保证梁桥的安全使用。 Most bridges in our country are beam bridges. With the increase of operating years and traffic volume, the structure and performance of bridges have been degraded, which seriously threatens the safety of bridges. In order to ensure the smooth transportation of road, this paper analyzed the common diseases and causes of beam bridge, summarized the factors affecting the safe operation of beam bridge, established the safety evaluation index system of beam bridge, Provide a scientific basis, so as to ensure the safe use of the beam bridge.