Haihong old man has successfully signed the world's first "three towers and four spans double deck steel truss girder" suspension bridge, Wenzhou Oujiang Beikou bridge main bridge coating project. The construction period of the whole bridge is 60 months, and it is expected to be completed and opened to traffic in 2021.
As the forerunner of bridge protection, it can provide a durable and beautiful anticorrosive coating solution for such an unprecedented main bridge steel structure, fully demonstrate the overall strength of Haihong elderly, and reflect the high recognition of customers for Haihong elderly.
Wenzhou Oujiang Beikou bridge is one of the bridges with the most difficult technology and the most complex construction technology in China and even in the world. The three world initiatives represent the existing bridge construction level in China and provide a useful reference for the world bridge construction. Three world initiatives
1. The world's first "three tower four span double deck steel truss suspension bridge"
The main cable span is 230 + 800 + 800 + 358m, the expressway is located on the upper layer, and the Nanjin highway is located on the lower layer, which can meet the needs of 107000 vehicles a day, and will be one of the most powerful highway bridges in China.
2. The concrete structure is used as the middle tower for the first time in the world
For the first time in the world, A-shaped concrete middle tower structure is used in the marine environment, which makes it possible to build a long-distance multi tower suspension bridge in the future.
3. For the first time in the world, caisson is used as foundation in silt soil
It is the first time to use the super large caisson foundation in the deep silt soil layer of the strong tidal estuary, which is safer and more reliable.
▍ source: old Haihong
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