钢管混凝土拱桥吊杆二次张拉的应用

Application of Secondary Tensioning of Suspension Rods in Steel Pipe Concrete Arch Bridges

本文针对钢管混凝土拱桥在施工过程中,因施工线形、挠度变形以及温度变形等因素不断地变化,按照设计要求对吊杆二次张拉,使得桥梁实际最终索力与设计最终索力一致,保证结构受力合理,运营安全。

This article focuses on the steel tube concrete arch bridge.During the construction process,due to the continuous changes in factors such as construction linearity,deflection deformation,and temperature deformation,the suspension rods are re tensioned according to the design requirements to ensure that the actual final cable force of the bridge is consistent with the design final cable force,ensuring reasonable structural stress and safe operation.