Client: Vinci Construction France – GTM Batîment
Architects: Atélier Christian de Portzamparc
Steel thickness: 10 – 150 mm
Steel weight: 5000 tons
The permanent coverage of metal frame was implemented for U Arena Stadium. The procedure of butt-welding of an Arcelor Mittal HISTAR profile with the dimensions 400x1202 (1202kg/m) was used to produce a lower bridle of a complex reticular truss with a net unsupported span of 120 m. The working of this material requires for preheating before the welding, maintenance of the temperature during the welding and controlled cooling after the welding works. The painting was by the direct competence of LMV.
You can see the presentation of the project in the video.
You can also see the video of the lifting of the Toiture Centrale of the stadium.