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Hunshuihai Interchange, Binan Expressway, Yunnan Province
The project is located in the northwest of Xiangyun County, Yunnan Province. It consists of a main bridge, 8 ramps, and 22 bridges. The ramps are three-layered and intersect vertically, making the project structurally complex. It crosses the Dianzhong Water Diversion Project and the Xiangyun railway line, crosses National Highway 554 four times, and connects the Chu-Da Expressway and the Bin-Nan Expressway. The transportation, installation, and construction organization processes require high standards. The project has a total of 21 steel box girders, weighing 13,000 tons in total.
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Kunming Chengcheng Expressway Dayu Interchange Steel Box Girder Project
The steel box girder project is used for the Dayu Interchange F ramp section 1 and H ramp bridge No. 2 of the Chenggong to Chengjiang Expressway project. Both steel box girders are single-box single-cell steel box girders with a single-box web spacing of 5.5m. They are assembled and hoisted on-site using unit components, and the two ramp bridges intersect and overlap.
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