【摘要】 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 .更多还原

【Abstract】 For building a long span concrete filled steel tube (CFST) arch bridge with an integrated installation tower,one of the key technologies is to control the arch rib alignment of the bridge.Based on the theoretical analysis and the measuring results,the designed arch rib alignment of a being built bridge can be guaranteed quality by adjusting the length of the cables on line.The engineering application shows,by using the on line adjusting cable technology,that it is economical and in safety for building a long span CFST arch bridge.更多还原