三汊矶湘江大桥主孔钢箱梁安装施工方法

The main hole steel box girder construction methods of Sanchaji Xiangjiang River Bridge

主梁安装是大跨度自锚式悬索桥施工的关键技术,尤其是在竖圆曲线上采用一端顶推更凸显难度。介绍了三汊矶湘江大桥主梁安装施工方法,验证了主梁在圆曲线上采用一端顶推的可行性,可为以后同类型桥梁施工提供了借鉴。

Main girder installation is a key technology of large span self-anchored suspension bridge construction,especially in vertical circular curve by end pushing.This paper introduced the girder construction methods of Sanchaji Xiangjiang River Bridge and verified the feasibility of pushing one end of main beam in the circle curve,which provides valuable experiences for the construction of other similar bridges.