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Taizhou Bridge over the Yangtze River



2016-01-18
BRIDGE Magazine



Taizhou Bridge over the Yangtze River, having a total length of 62.088km and a deck width of 33.0m with six traffic lanes in dual direction, is located in Jiangsu Province. The main bridge is a three-tower two-suspended-span suspension bridge with central spans of 2×1080m. The bridge girder is a 39.1m wide and 3.5m deep two-span continuous steel box. The side towers supported by bored piles are portal frame shape reinforced concrete structures with the height of 171.7m. The mid-tower supported by a floating caisson is a steel structure with a portal frame in the lateral direction and with a herringbone shape in the longitudinal direction. Both the northern and southern anchor blocks are gravity anchorages with caissons. The main features of the bridge are: (1)A new system with three towers and two main spans is applied in suspension bridges for the first time; (2) An inversed Y-shaped steel structure is adopted in the mid-tower of the bridge to solve the anti-slipping problem between the main cable and the cable saddle at the top of the mid-tower; (3)The floating caisson is adopted as the foundation of the mid-tower to ensure the engineering quality, simplify the construction procedure and save materials.
 
Maintenance: Jiangsu Taizhou Bridge co. Ltd.
Designer(s): Jiangsu Province Communications Planning and Design Institute Limited Company 
           China Railway Major Bridge Reconnaissance & Design Institute Co., Ltd. 
Contractor: China Communications 2nd Navigational Bureau 2nd Engineering Co., Ltd.(CSNEC)
          CCCC Second Highway Engineering Co., Ltd.
          China Railway Major Bridge Engineering Group Co., Ltd.
Steel Box Grinder Manufacturer: China Railway Baoji Bridge (Yangzhou) Co., Ltd.

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