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The length of Jiujiang Yangtze River Expressway Bridge, a part of Fuzhou to Yinchuan Expressway (Fu yin expressway), is 8462m. The main bridge, 1405m long, is a dual-pylon cable-stayed bridge with six asymmetric spans and composite girders, using a dense cable semi-floating systems. The width of steel box girder with tuyere is 38.9m and the height of girders at centre line is 3.6m with deck transverse grade of 2.0%.
ZTSS undertakes steel box girders fabrication of GL2 biding. The overall length of steel box girder is 763.2m.
According to design , steel box girder is divided into 12 types of segments: A、B1、B2、C、D、E、G、J、K、L、M、N, total 55 segments.
The length of typical girder is 15m. The heaviest lifting segment is about 480t.
Except bolting connection for U-ribs and flat stiffeners of top plate, the other connections for steel box girders adopt welding at site.
Adopt Q345qD and Q370qD-Z25 steel for major structure of steel box girders, Q235-B steel for tuyere.
The weight of the bridge is about 18,000 tons.
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