文章针对目前公路受损钢筋混凝土梁承载性能技术状况评价领域存在的承载能力分析计算方法不统一和评价指标缺乏的情况,讨论了受损公路钢筋混凝土梁残余承载能力的分类及应用,并提出了承载能力损伤系数的概念。为公路钢筋混凝土梁桥的病害调查分析、承载能力技术状况评估和受损构件降级使用、加固设计工作提供更为便利、科学和直观的受损钢筋混凝土梁承载能力评价方法和评价指标。 In this paper, in view of the existing methods of bearing capacity analysis and bearing capacity analysis and the lack of evaluation index in the field of technical performance evaluation of the damaged highway, the classification and application of the residual bearing capacity of the damaged highway reinforced concrete beam are discussed. The concept of bearing capacity damage factor. For the highway reinforced concrete girder bridge disease investigation and analysis, the bearing capacity of the technical status assessment and the use of damaged components downgrade, strengthening the design work to provide more convenient, scientific and intuitive evaluation of the damage capacity of reinforced concrete beams and evaluation index.