A 1.6km cable-stayed bridge in Hubei province, China, was the region’s first large-scale bridge project to use prefab assembly technology.
Hanjiang Bridge to the west of Wuhan on the Beijing-Hong Kong-Macao expressway is a 1.6km structure with two towers of 123.5m.
The blue 123.5m pylons of Hanjiang Bridge, Hubei Province, China. Credit: SRBG
Its complex urban location drove the project team to draw on prefab technology when building the approaches. The 30m T-beams were fabricated in five 6m piece and then transported to the site and assembled like building blocks.
The project team also established a full-process digital management and control system to improve efficiency. Other innovations, such as locating crane drivers in a “smart centre” under the tower, were aimed at reducing the number of people working at height.
An intelligent detection system for cement mixing pile construction allowed real-time monitoring, helping with management of soft soil at the site, while buried settlement plates provided monitoring of new and old road beds, allowing for control of settlement differences.
The bridge was invested and constructed by Hubei Communications Investment Group and Sichuan Road and Bridge Group under Shudao Group.
