南宁大桥曲线钢箱梁吊装关键施工技术

The key construction technology of curve steel box girder lifting of Nanning Bridge

针对南宁大桥主桥大跨径曲线梁非对称外倾式钢拱桥结构设计新颖独特、施工难度大、技术及工艺要求高等特点,详细介绍了曲线钢箱梁节段空中精确对位、空中稳定、线形控制与调整等关键施工技术和工艺,为类似工程施工提供了借鉴。

According to the characteristics of structure design novel and unique, construction difficult, technology and process requirement higher of curve girder asymmetric extroversion type rigid arch bridge of main bridge long span of Nanning Bridge, this paper introduced in detail the stage air precision alignment, air stable, linear control and adjustment and other key construction technologies and process of curved steel box girder, provided reference for similar engineering construction.