Our case studies

Construction of the library of Birmingham was originally conceived as a structural steel frame. During the tender period, and in order to realise the full value engineering benefits, the frame was changed to reinforced concrete with post-tensioned slabs and beams

A tensioning system to increase the water flow and speed up installation, and upstream preparation on a 1:1 scale replica of the canal: these were the keys to the successful waterproofing of the Larona hydroelectric plant.

Installation of a cable-stayed bridge by rotation over a heavily trafficked motorway whose configuration does not allow for a traditional incremental launching construction method.

Creation of a pedestrian tunnel under the railway tracks of the Vendôme metro station in Montreal by Autoripage.

The construction of a station located underneath a Paris shopping centre required the taking up of a load of a frame assembly of some 100,000 tonnes, thanks to an innovative jacking system.

Use of prestressing to ensure sustainable waterproofing and optimise the sizing of a tall tank digester.

Reinforcement of the ExxonMobil offshore platform in Canada with 2,400 tonnes of post-tensioning to ensure waterproofing and iceberg-resistance of its concrete structure.

The unique launching procedure that was employed to build the deck of France’s prestigious Millau Viaduct put construction and cable-stay technology to the test.

In South West France, where environmental conditions can create maintenance headaches, durability was a high priority for the authority commissioning a new suspension bridge.