苏通大桥为主跨1 088 m的钢箱梁斜拉桥，钢箱梁分为5部分：辅助跨、边跨及索塔区大块梁段，悬拼标准梁段，边、中跨合龙梁段。大块梁段在工厂组拼，用大型浮吊安装。由于通航净空高，传统桁架结构吊具难以满足国内现有浮吊吊高与吊重要求，所以提出苏通大桥超大、超重钢箱梁节段轻型吊索具结构，并介绍了吊索具设计与使用要点。标准梁段采用桥面吊机悬臂安装。由于主梁节段宽且重，加上桥区恶劣的气象和水文条件，以及斜拉索长索梁端牵引需要，对桥面吊机结构和性能提出了较高要求。介绍了苏通大桥集梁段吊装和拉索安装功能为一体的桥面吊机设

Sutong Bridge is a cable stayed bridge with a steel box girder and a main span of 1 088 m. The steel box girder of main-span includes five portions: back span large unit, large block of pylon, standard girder, back span closure girder and middle span closure girder. Each back span large unit was fabricated by welding several deck segments together in factory, and was erected by floating crane. Due to the high of navigational clearance of the main bridge, the traditional truss lifting device couldn't satisfy the requirement of domestic lifting cranes for this kind of lifting height and weight. Hence, a kind of lighter lifting device for the erection of back span large units was accepted for this bridge. In this paper, the design and use of this lifting device is introduced.The upper structure used lifting gantry to install the standard girder segment by cantilever method. Because the bridge's navigation clearance is high, and the girder segment is wide and heavy, the meteorology and hydrology condition of the bridge district is abominable, and the requirements of long cable girder side pull-in, structure and performance propose high request to the lifting gantry. In this paper, key points of designing and using long cable pull-in angle adjustment device integrate into lifting gantry are introduced.