大跨度钢管拱外包混凝土施工技术

Construction Technology of Long Span Steel Pipe Arch Outsourcing Concrete

通过对夜郎河双线特大桥大跨度钢管拱外包混凝土施工关键技术研究,得出对于大跨度钢管拱外包混凝土施工最合理施工控制工艺,其钢管拱外包混凝土施工工艺步骤简单、设计合理、投入成本低、现场操作简便,能够实现其外包混凝土快速顺利浇筑,为其他同类型钢管拱外包混凝土施工提供可靠参考价值。

Through the research on the key technology of the outsourcing concrete construction of the large-span steel pipe arch of the Yelang River double-line super bridge, the most reasonable construction control technology is obtained. The steel pipe arched concrete construction process has the advantages of simple process, reasonable design, low cost and simple on-site operation, and it can realize the rapid and smooth pouring of the outsourced concrete and provide a reliable reference value for the outsourcing concrete construction of other steel pipe arches.