The air control tower with integrated office building of Austro Control,located to the west of the World Trade Centre, is the technical heart of the Vienna air control. With its 109m height the tower is the landmark of the airport.

The cover is suitable for radar. It consists of 11 gradually distorted rings (4x26x26m) which upwards get more and more oval and it has a membrane surface of 3.324 m². The rings were assembled by the Lift-Slab method, level after level in all together 10 steps.

formTL
consulting, detail design, tender documents membrane, workshop drawings membrane + cables

general architect
Zechner + Zechner/Vienna

steel manufacturer
Zeman

membrane manufacturer
Covertex

membrane design
Mandl/formTL

published
DAM Frankfurt – Ausstellung High Society
Jovis Verlag/Berlin

awards
Europeen Steel Desgin Award 2005
AR Award für emerging architecture 2005

photos
Zechner + Zechner

membrane surface
3.300 m²

PTFE-glass fabric