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组合索塔锚固结构近年来在斜拉桥中应用越来越广泛,因为它可以同时发挥钢与混凝土两种材料各自力学性能上的优势。该文以一座独塔斜拉桥的外露型锚箱式索塔锚固结构为对象,介绍了这种结构的设计方法和有限元分析结果,分析表明:锚固结构受力性能良好,同等情况下,组合索塔锚固结构外形尺寸更小。对于斜拉桥中索力较大的锚固结构,采用钢锚箱组合索塔锚固结构,在结构形式比选时是值得推荐的。
The composite pylon anchoring structure has been more and more widely used in cable-stayed bridges in recent years because it can simultaneously exert the respective mechanical properties of the two materials of steel and concrete. In this paper, the design method and finite element analysis of the exposed anchor box-type pylon anchorage structure of a single tower cable-stayed bridge are introduced. The analysis results show that the anchorage structure has good mechanical performance. Under the same circumstances, Combined pylon anchoring structure dimensions smaller. For the cable-stayed bridge in the larger cable anchoring structure, the use of steel anchor box combination pylon anchoring structure, in the form of structure than the election is recommended.