上跨铁路站场咽喉区连续钢箱梁设计与施工

朱永兵

摘要:

呼和浩特市巴彦淖尔路快速路跨越跨呼和浩特西站场咽喉区,共需跨越16股道,为选择合理桥型方案,尽量减少对运营铁路和地面道路的影响,分别对顶推连续钢箱梁、转体斜拉桥方案进行比选,并介绍连续钢箱梁结构设计和顶推施工步骤,建立了有限元模型,对桥梁运营及施工阶段结构受力进行分析。研究结果表明,顶推连续钢箱梁方案经济合理,结构受力满足规范要求,为同类型桥梁设计及施工提供参考。

Abstract:

Bayannaoer Road Expressway in Hohhot crosses the throat area of Hohhot West Railway Station and needs to cross 16 tracks. In order to select a reasonable bridge type scheme and minimize the impact on the operating railway and ground roads, the schemes of launching continuous steel box girder and swivel cable-stayed bridge are compared and selected respectively, and the structural design and launching construction steps of continuous steel box girder are introduced. A finite element model is established to analyze the structural stress of the bridge in the operation and construction stages. The research results show that the pushing continuous steel box girder scheme is economical and reasonable, and the structural stress meets the requirements of the code, which provides a reference for the design and construction of the same type of bridge.