Non-Schengen area, Helsinki Airport

The non-Schengen section of the Helsinki airport represented a particularly challenging design and construction site.  The building’s lowest two floors house luggage-handling facilities, while the top floor holds the passenger spaces. The bottom floor, which is subject to underground pressure, has post-tensioned rigid frame structures. The intermediate floor is made from elements. The frame of the passenger floor uses column-braced round composite pillars with triangular trusses installed on top. In addition, a 350-metre-long luggage tunnel and numerous other connecting structures were designed. The project was granted an honourable mention in the Tekla BIM Awards in 2009 and the RIL award in the same year.