本文利用结构矩阵分析法,对桁架拱渡槽的结构特性进行了全面的理论分析.包括选择合理结构型式和拱曲线型式、采用最优矢跨比、确定节间距、拟定杆件基本尺寸以及考虑温度变化、支座位移和风荷载的影响等.该项成果进行了结构模型试验验证,可用于桁架拱渡槽设计. In this paper, the structural matrix analysis method is used to analyze the structural characteristics of the trussed arch aqueduct comprehensively. It includes the selection of reasonable structure type and arch curve type, the use of optimal span-to-span ratio, the determination of the pitch, the basic dimensions of the rod and the consideration of temperature. Changes, bearing displacement and wind load effects, etc. The results were validated by structural model tests and can be used for truss arch aqueduct design.