在对服役混凝土桥梁进行病害调查的基础上,分析并定义了服役混凝土桥梁的5种典型内部缺损类型,提出了混凝土桥梁整桥结构和单一构件的内部缺损评估层次模型,构建了混凝土桥梁内部缺损的底层评估指标,对底层各评估指标提出了相应的分级评估标准,可初步应用于混凝土桥梁内部缺损的后续评估。 Based on the investigation of the service concrete bridges, five kinds of typical internal defects of the concrete bridges are analyzed and defined. The model of the internal defect assessment of the bridge structure and single component of the concrete bridge is proposed, and the internal defect of the concrete bridge is constructed Of the bottom of the assessment indicators, the bottom of the assessment indicators proposed by the corresponding grading evaluation criteria, the initial application of the concrete bridge internal defects in the subsequent assessment.