大跨度钢管拱肋桥外拼装技术研究

Study on the Assembling Technology of the Large Span Steel Pipe Arch Bridge

以兰新铁路第二双线达坂城湿地特大桥(63.4+136+63.4)m连续梁拱组合体系桥为依托,介绍了大跨度钢管拱肋桥外拼装施工技术,供同类结构施工参考借鉴。

Based on the continuous girder-arch bridge（136m ＋ 63.4m ＋ 63.4m） of the Dabancheng wetland super-large bridge on the second double line of Lanzhou-Xinjiang railway, the assembling construction technology of the large span steel pipe arch bridge is introduced, which will provide reference for similar constructions.