Variation C is an architectural proposal to accommodate a public centre, responding to a hot-dry climate, and which had to be built using concrete as the main material. In order to minimize direct radiation and exposure to winds, a compact typology was chosen. (the least surface per volume). It also provides the continuum interior space required by the function.

 

The structure can be understood as the result of two buildings (one inside the other) interacting statically. In fact there are two separate concrete constructions linked together by carbon cables, which because of their configuration, produce a pre-stress effect on the concrete. The outer construction is a concrete space frame stiffened by laminar prefabricated panels acting as diaphragms. The interior is a basic slab and column structure with a continuous atrium in the middle.

 

The central atrium and the intermediate void (between constructions) provide a continuous space for re-circulation of cooled and humidified air through the building. Stressed fibre meshes in the shape of conoids avoid dry sand winds from getting inside. Other important features are the wind collectors, as well as the upper membrane enclosure solution.