关于公跨铁桥梁小箱梁横向连接设计的一些探索

通过对公跨铁桥梁具体工程中施工难点的分析,提出了公跨铁桥梁设计中小箱梁横向连接的细部设计的新方向。通过计算机建模,采用同位对比的方法,分析比较了新老设计的计算结果,验证了新设计思想的优势。同时,分析了该设计思想具有减少施工对铁路运输的干扰、提高施工的便利性及铁路安全的保护程度作用。实际工程应用中已验证该设计方法是安全、高效的,可为今后类似设计提供参考。

Exploration on Small Box Girder Transverse Connection Design of Highway Overpass Railway Bridge

Through the analysis of difficulties in construction of highway overpass railway bridge in the actual projects,this paper proposes the new direction of detailed design of small box girder transverse connection of highway overpass railway bridge. Through computer modeling,with methods of comparison on corresponding spots,analysis and comparison of the calculation results of new and old design shows the advantages of the new design idea. Meanwhile,the paper introduces the effect of the design thought on reducing construction interference to railway transportation,improving the construction convenience and safety protection. Practical engineering applications have verified that the design method described in this paper is safe,efficient,and this paper can provide reference for similar design in the future.