Abstract：Abstract: Research purposes: Construction of Wanzhou Yangtze River Bridge was a key controlled project for Yichang-Wanzhou Railway to cross Yangtze River. The site of the bridge was in gorge with deep water and fast current and it was not suitable to build bridge pier in the river. The technical problems in design and construction of large span steel trussed arch were solved through making researches on the key technologies for design and construction of the bridge.
Research methods: With consideration of the conditions of geology topography navigation and hydrology, the integral comparisons of technology and economy were made by adopting methods of structure analysis and calculation, bridge structure dynamics and rolling stock dynamics.
Research results: The main steel beam adopted the composite structure of steel trussed arch beam and it was the first time to be adopted in China. The bridge was the largest span bridge in China. The paper explored a set of successful design and construction experience. And a series of technical researches made for construction of the bridge.
Research conclusions: The composite structure bridge with three-span continuous steel trussed arch beam of 168 m+360 m+180 m was adopted for main bridge. The safety of train running and comfortableness were ensured due to adopting the truss with width of 16 m. The gentle vibration was effectively controlled due to nationally drilling hole on suspension rod. The frame of steel trussed arch had to be erected by climbing crane. The high accuracy closure of steel trussed arch was ensured due to using correct assembly order and taking national technical measures.
秦顺全. 宜万铁路万州长江大桥设计与施工[J]. 铁道工程学报, 2006, 23(2): 20-23.
QIN Shun-quan. DESIGN AND CONSTRUCTION OF WANZHOU YANGTZE RIVER BRIDGE ON YICHANG-WANZHOU RAILWAY LINE. 铁道工程学报, 2006, 23(2): 20-23.
2006, Vol. 23 
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