A single self-bearing beam supports the roof of this spacious room, which is 40 metres in width. Intermediary support was not required.
It is the largest composite steel-concrete truss beam made to date: 55 metres in length and 3 metres in height, weighing in at 60 tonnes.
A launching girder operation was carried out at a height of 20 metres in 3 hours with particular attention being paid to the environmental conditions. The placing of the structure took place with no wind.