在拱梁组合桥梁设计和施工分析中,确定成桥状态时的吊杆张拉力非常关键。本文采用空间杆系有限元分析模型,对结构新颖的蝴蝶式空间组合拱桥的成桥吊杆张拉力运用三种分析方法进行了分析计算对比,获得了该组合拱桥的成桥最佳张拉力。本文的分析方法可为其它组合拱桥提供参考。 In the analysis of the design and construction of the composite arch bridge, it is very important to determine the tension of the boom in the bridge state. In this paper, by using finite element analysis model of the space bar, three kinds of analysis methods are used to analyze the tension of the bridge boom with the novel structure of butterfly-type space arch bridge, and the optimal tension of the arch bridge is obtained. The analysis method in this paper can provide reference for other combined arch bridges.