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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。
Based on the project background of Hengshan Xiangjiang River Highway Bridge, based on the existing project of reconstruction and replacement of dangerous bridge, the paper systematically and systematically introduces three aspects of construction technology and methods from the principle of changing cable, the construction monitoring and control of changing cable, Hengshan Xiangjiang Highway Bridge cable replacement program, and the bridge for cable construction methods in the old cable demolition, installation of new cable and tension, cable tension adjustment three major construction stages were described in detail, the full set of Techniques and methods can provide reference for the replacement of similar bridges.