重庆朝天门长江大桥桁拱安装扣锚系统技术

Construction Technology of Anchor System of Truss Arch of Chongqing Chaotianmen Yangtze River Bridge

介绍了重庆朝天门长江大桥钢桁拱安装总体方案和扣锚系统的设计及实施步骤,阐述了利用扣锚技术控制悬臂施工状态下桁拱结构变形及杆件安装应力,实现跨中无应力状态合龙的施工技术。

the paper introduced the general installation scheme and the buckle anchor system design and construction steps of the Chaotianmen Yangtze River bridge in Chongqing, and discussed the construction technique by which the deformation and the stress of truss-arch structure was controlled and non-stress state was kept when the bridge closed up.