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Musée des Confluences
Lyon | France
Architect
COOP HIMMELB(L)AU
Height
45 m
Project Feature
The main building culminates towards the north with the transparent structure known as le Cristal (the Crystal), an extremely complex geometry that required an enormous design effort. A monumental free form in glass and steel, requiring about 650 tons (1.4 million lb) of steel and made up of 32 differently sloped sections curved at different angles. Its geometry is made particularly complex by the Gravity Well (Puits de Gravité). The primary and secondary steel structures are connected by an innovation system developed for the project. The side façades have a brise soleil sun-shading system managed by a BAS built into the steel structure. For the first time over 200 flush ventilation windows and natural smoke and heat exhaust ventilators were developed. The Gravity Well’s structure was optimized using advanced 3D software, the engineering teams designed 160 one-off connecting nodes. Each single glazed element had to be heat bent to a wide range of curvature specifications.
Scope of Work
6,000 sqm (64,600 sq ft) of 3D glass and steel façade and over 200 fire and ventilation windows for the Crystal, 11 glass roofs in the Cloud.
Type/Technology
Steel & Glass Façade
Sun-shading System
Building Type
Cultural Complex
Museum
Project Status
Completed
Completion Date
2014
Owner
Département du Rhône, Lyon, France represented by SERL (Société d’Equipement du Rhône et de Lyon)
Client
SERL (Société d’Equipement du Rhône et de Lyon)
Contractor
VINCI Construction France
