Roof Structure of Vistalegre Arena

Vista Alegre, Carabanchel, España

Structural typology: MEMBRANE STRUCTURES
Date: July, 1997
Owner: Ayuntamiento de Madrid
Scope: detailed design and construction support
Architect: Jaime Pérez Aciego

The fixed roof of the Vista Alegre Facilities is a Schwelder-type dome, composed of steel parallels, meridians and diagonals, with a 1/8 rise-span ratio. It is supported on concrete pillars at its perimeter.

The fixed roof consists of a single layer comprised of commercial steel profiles (IPE). At the central part of the roof, there is a steel compression ring which is 50.0m in diameter. On this ring, 12 steel masts are placed which support the moveable section of the roof when it is raised.

This moveable roof-section consists of a 12.0m deep pneumatic lens-shaped cover, held together by a perimetrical steel ring 50.0m in diameter. Its upper membrane is made of PVC polyester; its lower one is a transparent Velaglass-sheet, sustained by a cable mesh 1.50m x 1.50 m2.

This moveable section of the roof can be raised 10.0m above the fixed part of the roof, hanging from the 12 masts which are supported on the main roof area.


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