单孔128m跨简支钢桁梁架设施工技术分析

摘要

China's first heavy haul railway with a 30t axle weight, might be constructed with no reference to any previous mature experiences, because of its characteristics in heavy axle, and higher requirements of quality. This paper aims to summarize X Bridge's erection construction technology of simply-supported steel truss girdle with 128m single-apertured span. By taking the on-the-spot construction conditions into full consideration, we adopt the optimized scheme which provides a reference for similar engineering projects in future.%我国首条轴重30t重载铁路，具有轴重大、质量标准要求高等特点，没有成熟的经验可借鉴。本文总结了某特大桥跨大堤单孔128m简支钢桁梁架设施工技术，充分考虑了现场施工条件，因地制宜、经济合理的优化钢桁梁架设施工技术方案，为以后类似工程提供了较好的借鉴与参考经验。