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The temporary structure is a tubular space of 34.5m in length and 4.4m
in width. The circular vault space is entirely covered in its length by
a waterproof membrane and panel system that is supported on a system of
cylindrical ribs. These are made of 29 semi-circular arches, equal in length,
and a network of transversal wind-bracing elements. The arches are at 1.2m
intervals. The ribs are made of paper tubes, inside 120mm diameter, 760mm
external diameter.
The whole structure, vault and base, is covered by a system of external
membrane in PTFE (Poly Tetra Fluoro Ethylene in strict accordance with
current fire regulations) that provides the water-proofing. The two lateral
facades and gables are in timber structure and infill panels.
The temporary structure is conceived as one whole continuous space. The
different zones are created by partial partitioning formed by tall shelving
units.
The space is sub-divided into successive areas: reception hall, conference
room, work space, rest zone and model workshop.
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