在大跨度钢管混凝土拱桥塔架 /扣架一体化缆索吊装施工中 ,其关键技术之一是主拱线形控制 .在理论分析和现场测试的基础上 ,动态调整扣索长度 ,可保证钢管拱肋的设计线形 .工程实践表明 :将扣索动态调整技术应用于大跨度钢管混凝土拱桥的吊装施工中 ,可降低工程造价 ,保证施工质量 . In the construction of long-span concrete-filled steel tube arch bridge tower / buckle integrated cable hoisting, one of the key technologies is the main arch linear control.On the basis of theoretical analysis and field testing, dynamically adjust the length of the buckle to ensure that the steel tube arch The engineering practice shows that the dynamic adjustment of buckle cable technology can be applied to the hoisting construction of large-span CFST arch bridge, which can reduce the construction cost and ensure the construction quality.