The steel deck pavement of the main bridge of Wenzhou Oujiang Beikou Bridge successfully completed

Source:CCCCTime:2022-04-26

Recently,the steel deck pavement of the main bridge of Wenzhou Oujiang Beikou Bridge has been successfully completed. 

Recently, the steel deck pavement of the main bridge of Wenzhou Oujiang Beikou Bridge, the world's first three-tower four-span double-layer steel truss girder suspension bridge, has been successfully completed. The overall physical progress of the bridge reached 98.1%, laying a foundation for the goal of opening to traffic.
The total length of the bridge is 7.9 kilometers, and its main bridge is 2,090 meters long. The pavement area of the steel bridge deck hits 136,000 square meters. The upper steel bridge deck is paved with "GA+SMA" (two types of asphalt materials), and the lower steel bridge deck is paved with "ECO+SMA".
As the first large-area, double-layer special-shaped steel bridge deck pavement project in China's coastal areas, the project faced many technical difficulties such as rainy, strong wind, and cross-effect of construction on the upper and lower floors. In order to ensure construction quality and improve construction efficiency, the project department adopts self-developed integrated joint construction equipment to realize in-vehicle production, efficient paving and automatic leveling of concrete; and adopts an information-based quality control system to realize dynamic feedback of steel bridge deck paving, visual management, quality early warning and decision support.
After the completion of the Beikou Bridge, the daily vehicle traffic capacity will reach 107,000 vehicles. The project will facilitate the national highway network, improve the traffic capacity of the eastern coastal highway transportation channel, and further strengthen the communication between the Yangtze River Delta, the west coast of the Strait and the Pearl River Delta region, and it is of great significance to build a metropolitan economic circle of Wenzhou.
 

Editor: Second Harbor Engineering