Context
As part of a complete rehabilitation of the site, CIDECO was commissioned to carry out the structural diagnosis of the Saint-Ouen Ice Rink and to design the necessary reinforcements to accommodate future loads.
The building, designed by architect Paul Chemetov, also known for projects such as the French Ministry of Economy and Finance (Bercy), was inaugurated in 1980 and is now listed as a heritage structure of architectural significance.
The skating rink floor, located on the first upper level, is supported by prestressed concrete beams resting on four massive concrete blocks and partially cantilevered above the roadway.
These blocks, extending from the third basement to the roof, carry two 70-meter-long steel mega-beams with 8-meter cantilevers on each side, which in turn support the entire metal framework.
The structural complexity is increased by the fact that the three basement levels are completely independent from the superstructure, separated by expansion joints isolating them from the four main concrete blocks.
Operations
- Analysis of the structural system
- Geometric survey of all structural components
- Non-destructive testing of concrete structures using GPR
- Load-bearing capacity study of the steel frame under current and future loads
- Structural reinforcement design and dimensioning
Key figures
4.65
m side length of each concrete block
30
m span of prestressed concrete beams
70
m span of steel mega-beams
13.80
m cantilever on the Jean Jaurès Square façade
6.40
m cantilever on the Dr Bauer Street façade
8
m cantilever of steel mega-beams
