Macheng to Ankang Expressway Macheng East Section Cross-line Overpass.
On December 28, 2023, the science and technology project of Hubei Provincial Department of Transportation "Research and Engineering Demonstration of Key Technologies for the Design and Rapid Construction of Fully Prefabricated Ultra-high-performance Concrete Bridges" participated by Huaxin New Materials successfully passed the acceptance of the expert group.
Project acceptance meeting.
The scientific research project has developed the preparation technology and mechanical properties of ultra-high-performance concrete suitable for bridge application, put forward the structural system and design theory of fully prefabricated and assembled ultra-high-performance concrete bridges, and formed a complete set of rapid construction technology and quality inspection and evaluation standards for fully prefabricated and assembled ultra-high-performance concrete bridges, which has a promoting effect on the development of green industry.
Main beam erection. The demonstration project span overpass is located in the east section of Macheng of Ma'an Expressway, and the whole bridge adopts 2-span 25m UHPC prefabricated beams, and the structural form of simply supported and rigid structure. Compared with the ordinary concrete solution, the beam height is reduced by 32%, and the dead weight is reduced by 61%. The use of UHPC increases the headroom under the bridge, making the structure light and beautifulThe construction period is shortened and the impact on traffic is reducedImproved bridge spanning capacity and durability;It reduces the amount of concrete, and is a green, low-carbon and environmentally friendly bridge structure. It provides a reliable basis and a good demonstration for the application of the same type of bridge.
Construction unit: Hubei Communications Investment Group***
Design unit: Hubei Provincial Transportation Planning and Design Institute shares***
Research team: the team of Professor Fang Zhi of Hunan University.
Construction unit: Hubei Road and Bridge Group***
UHPC Material Technology: Huaxin Chao Kolon New Building Materials Technology (Huangshi)**