南京长江三桥为我国首座采用钢索塔的特大型斜拉桥。针对钢索塔立式匹配预拼装,研究了微型控制网构建、测量点选择、匹配温度控制、立式匹配检测、钢索塔节段轴线偏差控制的方法,获取了已匹配钢索塔节段的状态,达到了指导后继节段加工和桥位施工现场钢索塔拼装的目的,取得了较好的效果。 Nanjing Yangtze River Bridge for the first time China’s use of steel tower extra large cable-stayed bridge. Aiming at the vertical preassembly of the steel tower, the methods of constructing the micro control net, selecting the measuring points, matching temperature control, vertical matching detection and the control of the segmental axis deviation of the steel tower were studied. Of the state, to achieve the purpose of guiding the succession of segment processing and bridge construction site steel tower assembly, and achieved good results.