Buildings, Office & Residential

Plaza Roof – Ernst & Young Luxembourg

The new Luxembourg headquarters of Ernst & Young joins a number of banks, government agencies and European institutions located on the Kirchberg Plateau northeast of the city. Oriented around a large public plaza, the headquarters opens up towards the wide Avenue John F. Kennedy and is flanked by cafés and shops on two sides. sbp’s brief was to design an attractive and cost-effective roof for this generous public entrance and plaza with an extraordinarly low rise height to prevent it from projecting too far above the roof level of the building.
The plaza roof structure is comprised of a two-way spanned dome-like steel grid over a diamond-shaped footprint. It features suspension cables and a roof cladding of flat quadrangular glass panes. All four sides of the roof intersect with tilted glass panes so that the eaves are continuously horizontal. They run in line with the height of the eaves on the building wings to each side. Arranged under every second arch in the transverse direction, filigree tension members above the horizontal cables support the grid structure and facilitate the exceptionally low rise.

Location
Luxembourg
Architect
Sauerbruch Hutton
Owner
Kirchberg Property Company S.C.A
Partner
Mike Schlaich

Technical Data

Roof
width approx. 42 m (street side), approx. 17 m (back side)
length approx. 36 m
construction height approx. 3.80 m
Building height
24 m
Mesh grid
1.70 m x 1.70 m - 1.70 m x 0.80 m
Dimension of bars
hollow sections 140 mm x 80 mm
Cables
open spiral strands, galfan coated
Structural steel
S355, S355J2H
Glass
2 x 8 mm laminated safety glass made of partially pre-stressed glass

Lectures

Location

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