本文简述了桥梁调查的内容,论述了双曲拱桥上部结构的四种评定方法,即按缺陷进行评定、按主拱圈截面总高度进行评定、用分析计算进行评定以及荷载试验进行评定。前两种方法适用于初步评定,推荐采用分析计算评定,必要时用荷载试验评定。本文介绍的评定方法可应用于现有双曲拱桥的评定。 This article briefly describes the contents of the bridge survey, and discusses four assessment methods for the superstructure of the double-curved arch bridge. That is to say, they are evaluated according to the defects, evaluated according to the total height of the main arch section, evaluated by analysis and calculation, and assessed by load tests. The first two methods are suitable for preliminary assessment, recommended analytical calculation and assessment, if necessary, with the load test assessment. The evaluation method introduced in this paper can be applied to the assessment of the existing double curved arch bridge.