衡山湘江公路大桥换索方案研究

Research on Scheme of Cable Replacement of Hengshan-Xiangjiang Highway Bridge

以衡山湘江公路大桥为工程背景,在已有的危桥改造换索方案的基础上,从换索原则、换索施工监测与控制、换索主要阶段施工工艺及方法3个方面全面系统地介绍了衡山湘江公路大桥换索方案,并就该桥换索施工方法中旧索的拆除、新索的安装与张拉、斜拉索索力调整3个主要施工阶段进行了详细的介绍说明,其全套技术与方法可为同类桥梁的换索提供参考。

The scheme of the cable replacement of Hengshan-Xiangjiang Bridge is introduced from three aspects such as the principle of cable replacement, the construction monitoring and control and the construction technology and method. The removing of old cables, the installing and tensioning of new cables and the adjustment of cable forces are described in detail. The contents of this paper could be the reference for the cable replacement of similar bridges.