空腹式连续刚架拱桥是传统的刚架拱桥应用中的一个发展,也是梁拱组合桥的一种新形式。介绍了屯南大桥三跨空腹式连续刚架拱桥墩顶三角区域设计整体杆系空间模型与实体模型的分析体会,并给出了设计意见,可供同类桥梁参考。 Fasting continuous rigid frame arch bridge is a development in the application of traditional rigid frame arch bridge and also a new form of composite beam bridge. This paper introduces the analysis of the overall system space model and solid model of the pier triangle top of the three spans of the fast span continuous rigid frame arch bridge in Tunnan Bridge, and gives the design opinions for the reference of similar bridges.