| City, Country | Esch-Belval, Luxembourg | |
| Year | 2002–2006 | |
| Client | Dexia Banque Intern. du Luxembourg | |
| Architect | Vasconi Associés Architectes, Jean Petit Architectes | |
| Services | Structural Engineering | |
| Facts | GFA: 64,000 m² | Gross volume: 269,000 m³ | |
| Awards | Concours Construction Acier 2007, 1 st prize | |
In the South of Luxembourg a residential and business district was developed, located on the site of the former ARBED steel plant. The banking centre providing 1,700 workplaces has been built here with a planned further extension for a total of 3,700 workplaces.
The first completed building complex consists of a 75 m high, curved tower in the shape of a wavy disk with two additional smaller towers. The atrium with a fully glazed roof serves as the centre of the complex. The roof structure of the tower was carried out as a composite slab with exposed steel beams and the concrete ceiling slab. A fire assessment was carried out, which allowed them that the steel-structure could be built without fire protection and still provides the required fire resistance. The roof structure of the atrium was developed as a three-dimensional framework. The design concept of the free geometrical configuration of V-shaped trusses and suspensions rods reminds of a grid dancing on paper clips.
