Paris Expo Hall 4
The structures are irrigated throughout by a basement and by technical ceilings designed like theatre lighting rigs, thus ensuring complete flexibility of use. Giant girders span the 84 metres, thus leaving the space free of pillars. The pavilion entrances are signalled and embellished by immense lever arms which place the girders under tension.
Combined with overhead lines of light, they mark the East-West direction and provide the interior volume with landmarks and viewing comfort, for exhibitors as much as for the public.