Including the antenna the central tower of a new high-rise city in the Al-Khaimah Emirate reaches 875 m high into the sky. The load-bearing structure consists of an exterior, conically shaped net made of steel profiles that is joined to a central steel tube. The conical shape of the outer shell is structured like the thread of a screw by a recess in the facade winding its way up the building. Every 25 m the floor disks are formed to a rigid transverse bulkhead to improve the torsional rigidity of the building. As a further distinguishing feature the building has also been designed with generously dimensioned column-free sky gardens on four levels. The loads of the columns above the respective garden are distributed by means of diagonal supports to the internal tube and the external shell.

Murphy/Jahn, Chicago/USA

Planning phase
2008 − 2009

Construction time

Services by Werner Sobek
Initial clarification of planning brief and concept drawing for the structural planning (WP 1 − 2 acc. to HOAI)

Murphy/Jahn, Chicago/USA

JAHN, Chicago/USA

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