creative engineering
Soluxn
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COTTONERA SPORTS COMPLEX


Built as part of infrastructural works hosting the 2003 European

   Small Nations Games. The main focus of the complex is the 

   multipurpose sports hall, seating 1,300 people.


Primarily designed for Volleyball tournaments with a playing area of

   46m by 28m width and 14m high.



DOME STRUCTURAL CONCEPT


Use of a single layer framework not ideal due to shallow height to
   span ratio.


Shallow double-layered steel geodesic dome covering a square plan

   area.


Lower layer inscribes a square with sides measuring 46.55m and has

  a rise of 4m at the apex.


Dome upper layer is concentric with the lower layer and is 1.5m

   apart.


The two layers consist of triangulated grids and are connected

  together by bracing members.


Each layer is produced by the subdivision of a spherical

  icosahedron, by a frequency of 11 divisions and for each layer there

  are 22 member lengths as there are for the diagonal elements in

  between the upper and lower layers.


Supported along its perimeter on 44 vertical and 48 inclined

  steel columns, which are anchored to a three-dimensional braced

  concrete framework.

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