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Chaotianmen Yangtze River Bridge
Source: | Author:liyucsf | Published time: 2019-09-02 | 2131 Views | Share:


Chaotianmen Yangtze River Bridge is located in the main urban zone of Chongqing city, and the whole length of this bridge is 1,741m. Its main bridge, with the main span of 552m, is 190m+552m+190m, which is steel truss arch bridge. The upper deck of this bridge has 6 lanes with bi-directions, while the main road belongs to Class I category with the design speed of 60km/h. The total steel consumption of this project is 50,000t, and its total investment is 3.1 billion RMB.

 

Additionally, the main bridge adopts the materials of Q420qD, Q370qD and Q345qD, while it adopts the structures with box-shaped, H-shaped and E-shaped. The biggest length for a single part is 45m, and the heaviest part can reach to 80t. Main truss is complicated in structure, whose sectional dimension is also very large. The largest thickness for steel plate involved in this bridge can be 80mm, while this project uses 1.83 million sets of high-strength bolts for connection. Meanwhile, slip coefficient of faying surface is required to be more than 0.45. The bridge’s abutment adopts spherical seismic support with the carrying capacity of 14,500t, and the design year for this support is 100 years.