高塔斜拉桥钢锚梁施工技术研究

On the construction technology of the steel anchor beam of towers cable-stayed bridge

厦漳跨海大桥北汊主桥为双塔双索面钢箱梁斜拉桥,主塔塔高227 m,塔端斜拉索采用"钢锚梁+钢牛腿"的锚固结构形式,单个塔柱共设置23节锚固结构。单节锚固结构由一根钢锚梁、两个钢牛腿组成。锚固结构塔上安装调整时间长,操作难度大,安全风险高。

The North Branch main bridge of Xiamen-Zhangzhou Sea-crossing bridge is a double towers and double cable planes steel box girder cable-stayed bridge.The height of it＇s main tower is 227 m.The stay calbe on the end of the tower uses the anchor structure form of ＂steel anchor beam＋steel bracket＂,and a single tower column has 23 anchor structure.A single anchor structure is constitutes of a steel anchor beam and two steel brackets.The installation and adjustment time of anchor structure tower is long,and the operation has large difficulty and high safety risk.