摘要
Abstract
The Fourth Nanjing Yangtze River Bridge,the longest suspension bridge in China,as well as the third one in the world,is a two-tower three-span suspension bridge with the main span of 1 418 m. The key construction techniques for the superstructure,including lifting and installation of the cable saddles,erection of the traction system,walkways and main cables,rearrangement of the main cables,installation of the suspender cables and the cable clamps,erection of the steel box girders and wrapping of the main cables,are discussed in detail in this paper. It can provide some references for the construction of the superstructures for the similar suspension bridges in the future.关键词
南京长江第四大桥/双塔三跨悬索桥/上部结构施工/主缆架设/钢箱梁架设Key words
the Fourth Nanjing Yangtze River Bridge/two-tower three-span suspension bridge/super-structure construction/main cable erection/steel box girder erection分类
交通工程
