On March 12th, the north main tower of the Hanjiang Super Major Bridge, part of the Hubei section expansion and reconstruction project for the Jing-Gang’ao Expressway, was successfully topped out, creating favorable conditions for the entire Hanjiang Bridge to achieve its scheduled goal of joining together by the end of the year.
The Hanjiang Super Major Bridge is a control project for the Hubei section expansion and reconstruction of the Jing-Gang’ao Expressway. The total length of the bridge is 1,667 meters with a main span of 450 meters and a bridge deck width of 23.75 meters. It is designed as a four-lane one-way bridge. The north tower that was topped out is 121.5 meters tall. The Hanjiang Super Major Bridge is located in the middle reaches of the Yangtze River region with poor geological conditions, loose soil quality, and an underground quicksand layer over 30 meters deep, making construction very difficult.
To ensure safety, quality and efficiency in the construction of the Hanjiang Super Major Bridge, the construction team actively explored and developed a series of intelligent construction “new processes.”
According to the project manager: “At the top of this tower is a lightweight intelligent climbing formwork system. It uses intelligent construction technology that is fully controlled from the ground with no one on the tower, ensuring worker safety. Our intelligent concrete placement system distributes the concrete very evenly to prevent separation.”