Skypark Business Center, Airport | Luxembourg

A new sustainable building is being erected in the immediate vicinity of Luxembourg airport from some 15,000m³ of wood. Apart from offices, the building houses shops, restaurants, parking, a daycare centre, a gym and a hotel. We were responsible for timber construction planning, production and delivery of CLT BBS and glulam. The shell has already been completed and the final works are to follow shortly.

At 30.15m tall, the project reaches the maximum permissible height at the airport's premises. Furthermore, the building is some 366m long and 53m wide and comprises four underground storeys, the ground floor as well as the access cores, which were all built with reinforced concrete. The six upper storeys, however, were mostly built using timber construction. The ceiling, supports and beams as well as roofs of the timber construction storeys allow for long-term storage of the sequestered carbo_n. Moreover, the reusability of the wood and steel elements mark a significant step into a sustainable future.

The bridge construction, which was realised in timber and steel by binderholz in collaboration with Steffen Holzbau, posed a particular challenge. The truss bridges connecting the various wings of the building, strike the onlooker's eye from far away. Each bridge consists of three levels and spans a length of some 47m (max.). 12m tall and 15m wide, they consist of approx. 150 tons of steel, 500m³ of timber and 5,000 dowels. More precisely, the structure consists of glulam supports stacked on top of one another, steel supports for highly stressed areas and, in between, suspended glulam beams on which false ceilings from CLT BBS XL elements rest.

In coordination with Steffen Holzbau, binderholz designed the timber construction connection statics based on the 3D superstructure planning model and main statics done by AuCARRE. Connecting the glulam beams to the glulam supports, the team used binderholz' proprietary system connectors. 

All other timber construction details concerning the connection of the timber structure to the concrete and steel elements were worked out in collaboration with the involved specialist planners. This also included the timber structure's workshop and execution planning. Prefabrication and pre-assembly of the steel elements and system connectors to the timber elements was completed in our plants.

Client lux-Airport
Architecture Bjarke Ingels Group (BIG) in partnership with metaform architects & Jim Clemes Associates 
Superstructure planning AuCARRE - Cabinet d'Ingénieurs conseils
Project steering Beissel & Ruppert
Timber construction execution Steffen Holzbau S.A.
Building services Jean Schmit Engineering

Photos: © binderholz © Thomas Urbany
Rendering: © Bjarke Ingels Group (BIG)

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