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Expo.02 Arteplage Neuchatel Galet | 2001 | Pneu | Switzerland


General information
Location address NEUCHATEL
Location country Switzerland
Year of construction 2001
Name of the client/building owner Expo 02
Function of building Exhibition
Primary function of the tensile structure Rain protection
Sun protection
Degree of enclosure Open structure
Climatic zone Mediterranean - mild winters, dry hot summers
Short description of the project A round pebble smooth by the water action. This is the image the designers wanted to give to the works placed on the lake. In technical terms, the galet are huge pneumatic structures composed of two reinforced PVC membranes anchored on a steel ring. Between the membranes it is blown air at very low pressure.

Description of the environmental conditions The Galet project, as the majority of the structures built for the Swiss Expo '02 had to care about the following aspects and minimise the environmental aspect: the use of the ares either for their construction and their dismantel was of two years, while the exposition itself lasted from May to November 2002. There has been therefore the necessity to use large areas for a short time. We have tried to minimise the environmental impact due to the occupation of common exhisting areas, though temporary, which could create few problems to the already difficult balance of the modern cities. This problem has been solved by using exposition areas on the lake by building great platforms on wooden supporting piles. For the great quantity of materials necessary to build those covered areas it has been asked to use easy recyclable materials. The main purpose of the Galet is to assure covered areas protected by the rain and the sun to the exposition areas. The underneath buildings of the Galet have an independent climatic control. The architectural appearance is not less important, as a matter of fact the Galet must remembered as the symbols of the Expo '02. Expo '02 paid a lot of attention to minimise the environmental impact foreseeing besides the material a serious of obligations given to the builders to use the most efficient as possible means of production and transport in order to reduce the dispersion of energy and pollution agents.
Misc. project details
Duration of use
Temporary or permanent structure Temporary
Design lifespan in years 00-05
Material of the cover
Cable-net/Textile/Hybrid/Foil Fabric
Type (code) type IV and type V
Material Fabric/Foil Polyester
Material coating PVC
Weight (g/m2) 1450
Main dimensions and form
Covered surface (m2) 20000
Total length (m) 103
Total width (m) 24
Minimum height (m) 16
Maximum height (m) 30
Maximum free span (m) 92
Form of a single element Synclastic
Form of entire structure Synclastic
Involved companies
Architects Multipack Architekten
Engineers IF Ingenieurgemeinschaft Flächentragwerke
Contractors Consortium ZM - Canobbio - Schaetti
Suppliers Verseidag-Indutex GmbH
Gustav Nolting
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