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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.
Road and bridge engineering
Kunming Xinru Da Guanhe Bridge
Daguan River Bridge, also known as Zhaoyun Bridge. The design inspiration comes from the wonderful shadows and colors formed between the clouds, Daguan Pavilion, and Dianchi Lake. The two characters "Zhaoyun" are taken from the Daguan Pavilion long couplet: "All the bead curtains and painted buildings cannot contain the evening rain and morning clouds." Extracting the form of a traditional Chinese arch bridge, cleverly borrowing the flowing clouds as design inspiration, creating a beautifully curved and light bridge body through freehand design, integrating it into nature and organically into the overall environment of Daguan Pavilion and Dianchi Lake.
Road and bridge engineering
Longcheng Bridge, Guangxi
The project is located in Longsheng Each Nationality Autonomous County, Guilin City, Guangxi Zhuang Autonomous Region. It adopts a steel-concrete composite beam structure and is built to span the GuiSan Expressway and Heping River. The project uses steel plates with a thickness of 30mm~70mm, and the welding seams have high requirements. Due to the large span of the composite beam, the installation accuracy of each segment is high during installation. The measurement work is strict and meticulous, controlling measurement errors, closely monitoring each process, optimizing the welding sequence and method of on-site circumferential welds, and preparing contingency plans for weld inspection and rework of the entire welding project to ensure that the finished composite beam meets the design and specification requirements.
Road and bridge engineering
Kunming Jinxing Interchange and Longquan Interchange Reconstruction
After the demolition of 3 old bridges, a new steel bridge was built with a "well"-shaped H-steel beam structure and steel plates on top.
Road and bridge engineering
Kunming Mingbo Interchange Bridge across the Chengkun Railway steel box girder project
The A and D ramps of Mingbo Overpass cross the Chengkun Railway with a span of 50 meters. Both spans of steel box girders adopt a single-box four-cell structure, with a deck width of 10.9 meters. Due to the high safety requirements of railway operation, only a bridge crane can be used, and the construction must be completed within the time specified by the railway department. Each ramp is constructed in four box cells separately.
Road and bridge engineering
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.
Road and bridge engineering
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