Recently, in the early winter, the river water is clear and the warm sun is shining. At the construction site of the main pier of the Shuangliu Yangtze River Bridge on the north side of the Yangtze River, two "high towers" stand side by side, and the scene roars continuously. The technician pressed the operation button, and the "integrated intelligent tower building machine" about 5 stories high slowly climbed upward, and completed a 6-meter "ascent" in only one and a half hours; On the construction platform, the steel mesh sheets with uniform arrangement and dense weld joints are hoisted into the "steel bar parts tire frame", and the workers only need 1 to 2 days to complete the assembly of a section of the tower column "skeleton"
The bridge was built by CCCC Second Harbor Bureau and is the widest steel box girder suspension bridge on the Yangtze River. The main span of the bridge is 1430 meters and the width is 505 meters, with two-way 8 lanes and a design speed of 120 kilometers per hour, the bridge is currently in an accelerated construction period.
If you want to carve out a fine art, you must have a sharp 'carving knife', and our 'carving knife' is intelligent construction. Chen Cheng, chief engineer of the Shuangliu Yangtze River Bridge Project of the Second Harbor Bureau, said. The equipment integrates the adjustment of steel parts, automatic pouring, automatic vibration, independent intelligent maintenance system and integrated control, and at the same time has a large number of steps of tower construction, realizing the factory, intelligent and assembly construction of the main tower of the bridge, making the tower construction become an "assembly line" operation, which greatly improves the efficiency and safety of the construction. The project has also developed a concrete distribution vibrating machine, which automatically identifies the distribution and vibration points through a three-dimensional laser scanner, and integrates electromechanical and hydraulic control technology to realize the visibility and controllability of the concrete pouring process, and significantly improve the quality of concrete pouring.
In order to implement the concept of creating high-quality products to the end, the project team introduced the "flexible production line of steel mesh sheets" developed by the Technology Center of the Second Harbor Bureau; An information management system has been formed, a cloud platform has been built to monitor the construction site and strengthen the cooperation between man, machine and materials; Use digital construction technology to digitize and visualize the construction process.
Wuhan Shuangliu Yangtze River Bridge and Wiring Project is a planned Wuhan Xingang Expressway (Xinzhou to Huarong) across the Yangtze River channel, the project starts from the S111 Hanxin Line in Xinzhou District, Wuhan City, and ends at the S31 Huang'e Expressway, with a total length of about 35 kilometers.