The installation of the Arc Majeur, monumental work of the artist Bernar Venet, began this Friday on the E411 at Lavaux-Ste-Anne. At the end of the 5 days of the operation, the two metal arches which constitute the structure will rise on both sides of the highway and will culminate at respectively 60 and 20 meters of height. The project, carried by the John Cockerill Foundation, has been studied by our teams, and is conducted in collaboration with, among others, Eloy for civil engineering, Aertssen for lifting, the University of Liege (WindLab), V2I monitoring and GERB.
The four sections – curved Corten steel caissons, with a square section of 2.25 meters per side and 20 meters long each – were manufactured in John Cockerill’s workshops in Seraing. They will be successively routed on site, lifted then assembled and welded.
If the weather should be relatively mild, the eye is however focused on forecasts; the influence of the wind on such a structure is to be closely monitored to ensure assembly operations, but also to ensure its stability until all equipment is in place.