In order to relieve the traffic congestion in the city of Brazzaville, a new road is built along the Congo River, avoiding the coast road.
As part of this road, in the marshy area, the viaduct is connected to a cable-stayed bridge. Works executions calculations are undertaken by the contractor, for which an Independent Checking mission is awarded to the joint venture formed by SGI and setec. Whereas SGI is supervising the works on site and is checking the plans of the viaduct, setec tpi acts as an expert to check the cable stayed bridge.
As setec tpi’s subcontractor, terrasol oversees the checking of all the geotechnical works.
The works were carried out by the Chinese company CRBC and the bridge was completed in the first quarter of 2016.
Checking of the entire cable-stayed bridge, which includes:
- Numerical model + checking notes
- Expertise on site
The curve of the bridge and the method of construction on bents request a detailed tuning of the deck and the pylons.
setec tpi has completed its own numerical model in accordance with the Contractor’s construction planning. This enables to highlight all the difficulties of tuning in order to help the on-site team to:
- Deal with the flexibility of the bridge
- Foresee the counter jibs of the deck and the pylons
Client : Délégation Générale aux Grands Travaux (Congo)
Partners : SGI INTERNATIONAL (mandataire), terrasol
Contractor : CRBC
Period : 2013 – 2015