Atrium cover

Addis Ababa, Ethiopia 2011-2016

Object:  Atrium cover (cushion construction) for the Peace and Security Building of the African Union in Addis Ababa, Ethiopia

Client: African Union

Management: GIZ i.s.


- Al Waha Metalic Contruction Parts C. L.L.C., U.A.E (Structural design and steel)

- CENO Membrane Technology GmbH (ETFE cushions)

Architectural Design/ Structural Engineering:

- Prof. Dr. Robert Off,  Archineer® Director IMS e.V.

- Dipl.-Ing. Wolfgang Warisch,  Archineer®, M. Eng. Membrane Structures

Membrane: ETFE cushion atrium cover

The ETFE-cushion structure covers an area of 405 m². It consists of 5 parallel arches, held in place by 3 cable trusses. Underneath, independent of the cushion there is a cable net with solar cells providing photovoltaic electricity. The intended shape of the solar cells will reflect the African Union logo to the ground of the atrium as well as into the sky at night.