JOINT-WINNER: Innovation in Concrete
Innovative Integral Van Zyl Spruit Bridge
The unique Van Zyl Spruit Bridge is the first long integral bridge in South Africa and, at 90 metres, one of the longest integral bridges in the world. The innovative use of integral bridges allows savings in materials, no capital cost for bearings and joints, lower maintenance costs, more durability and makes concrete bridges more competitive.
In addition, the installation of over 500 sensors in the bridge structure which are being logged automatically every 15 minutes to detect and quantify trends in strain, temperature, tilt and earth pressure, make this one of the first ‘SMART’ bridges in the country. The data obtained from these sensors will contribute to a better understanding of environmental loading on and performance of integral bridges in South Africa and encourage more widespread use of integral bridges.
This project is a deserved joint winner of the Fulton Award in the “Innovation in Concrete” Category.
Location: Free State
Submitted by: Lafarge South Africa, Aveng Grinaker-LTA & University of Pretoria
Client: South African National Roads Agency Ltd SOC
Principal Agent: Mott MacDonald
Main Contractor: Aveng Grinaker-LTA
Specialist Sub-Contractor: University of Pretoria
Suppliers: Lafarge South Africa