Its shape is based on a indented conical dome to form interior and exterior spaces. The walls are made of concrete and glass while the roof structure is entirely designed with timber. The roofing frame works as a reciprocal structure. Twenty five levels of reciprocity are arranged to cover the surface. The result is a highly complex structure in which each piece is unique and influences all the wood members. This led us to realize a complete finite element model. And allowed us to optimize the dimensioning taking into account the exact role of each member in the overall stability of the building.
The climatic loads had to be precisely determined to account for the multi-faceted geometry. They were then applied in the structural 3D model element-by-element. Three connection methods were designed to closely match the forces passing through the nodes of the structure: 1. Screwed connections / 2. Glued rods / 3. Internal steel connections.
Due to the geometry, the joint of each node was unique and had to be integrated into the 3D model to be validated and optimized.
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