In the early morning of June 22, 2022, at the construction site of the Civil Aviation Road overpass bridge in Qiqihar City, Heilongjiang Province, an important old industrial base in China, the main bridge with a single weight of 27,500 tons took a total of 87 minutes to turn around and reach the predetermined line position, officially realized The main bridge is closed.

Su Guoming, Chief Engineer of Civil Aviation Road Flyover Project of China Railway Fifth Academy: The weight of the swivel on one side is 27,500 tons, the weight of the swivel on both sides reaches 55,000 tons, and the span of the main span reaches 162 meters. This is a concrete municipal bridge in the alpine region of China. The bridge with the largest and heaviest swivel tonnage also puts forward higher requirements for the construction process, requiring the accuracy to reach the millimeter level.

Civil Aviation Road Overpass Project is a key urban construction project in Qiqihar City and one of the top 100 projects in Heilongjiang Province. The total length of the project route is 2.793 kilometers, the bridge part is 897.3 meters long, the main road is two-way and six-lane, and the speed is 60 kilometers per hour.

The two bridges completed the rotation angle of 84.69 degrees clockwise and 95.61 degrees counterclockwise successively, and successfully completed the docking. After the completion and opening to traffic, the city airport, two high-speed railway stations and the main urban area will achieve rapid communication, which will comprehensively enhance the three-dimensional road network functions of Qiqihar's "air, rail and public".Editor/Ma Xue