桥梁工程 2026年 第卷 第02期

DOI: 10.7672 / sgjs2026020058

宁扬长江大桥悬索桥牵引系统设计与应用

舒宏生¹,刘勋¹,侯润锋¹,耿祥云²

作者简介：

舒宏生，硕士，高级工程师， E-mail: hongshengshu @163. com

作者单位：

1.中交第二公路工程局有限公司，陕西西安 710065; 2.中交二公局华东建设有限公司，江苏南京 211800

基金项目：

∗中交第二公路工程局有限公司 2022 年重点科技研发项目（2022X-2-23）

摘要：

宁扬长江大桥主桥为主跨 1560m 双塔单跨吊钢箱梁悬索桥，主缆索股采用 PPWS 法架设施工，上部结构采用 3 跨连续式猫道作业平台；针对桥位横跨长江流域、两岸牵引系统场地布置较困难等特点进行深入研究，最终猫道架设采用单线往复式牵引系统，主缆索股架设采用闭式循环牵引系统，均满足架设需求；经工程应用，闭式循环牵引系统具有同步、稳定、可靠、高效、经济五大技术特性，可为 2000m 以上超大跨径悬索桥主缆索股快速架设施工提供技术支撑。
桥梁；悬索桥；牵引系统；主缆；猫道；设计；施工技术

English：

Ningyang Yangtze River Bridge is a two-tower single-span suspension bridge with a main spanof 1560m. The main cable strands are erected by parallel wire strand （ PPWS ） method, and thesuperstructure adopts a three-span continuous catwalk operation platform. In view of the characteristics ofthe bridge across the Yangtze River and the difficulty of the site layout of the hauling system on bothsides, the single-line reciprocating hauling system is adopted for the erection of the catwalk, and theclosed-loop hauling system is adopted for the erection of the main cable strands,which meet the erectionrequirements. Through engineering application, the closed cycle hauling system has five technicalcharacteristics of synchronization, stability, reliability, high efficiency and economy,which can providetechnical support for the rapid erection of main cable strands of super-long-span suspension bridges over2000m.