Abstract
The Wuhu Yangtze River Bridge is a combined rail and highway bridge with a double-deck carrying two railway tracks and four lanes of traffic. The length of the bridge is 2194 m, comprised of steel trusses with a main cable-stayed bridge. The main span is 312 m and the side spans are 180 m long. Eight pairs of parallel-wire stay cables are mounted on each pylon and horizontal longitudinal cables are arranged between the steel girder and the crossbeams between the two pylon legs on top of the piers. The bridge dimensions were governed by navigation clearance to an adjacent airport as well as hydrology and geology. A stiffening truss was used to improve the vertical stiffness of the bridge. The reinforced concrete roadway deck slab was combined compositely with the steel truss to make them work together to improve vertical and lateral stiffness. The prefabrication of the reinforced concrete slabs, and the fabrication and erection of the steel truss are described.
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