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Canopies at the Expo in Hanover

Erected with different coloured coverings along the main routes of the Expo site and in frontof the German Pavilion, the canopies create a sense of continuity and identity. The simple construction consists of four double-curved cotton-fabric membranes spanned between steel sections and tensioned after assembly by the main beams. Tension and compression rods stabilize the structure against wind suction and pressure. The main beams also function as gutters that channel rainwater into drainpipes in the central columns. The canopies are 7.50 ? 7.50m on plan and can be linked to form a continuous covering. Polycarbonate sheets over the joints prevent the penetration of rainwater. The canopies are demountable and can be reused.
This article is taken out of the following magazine:
DETAIL 6/2000

Membrane Construction

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