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4.2 Stability and structural forces.
To avoid buckling of the twin arches in their plane, they are connected by means of
two pulling braces. This also ensures thewhole structure is sufficiently rigid. Pulling
cables, mounted diagonally between the various bays, complete the system.
The wind pressure which affects the vertical façade is absorbed by the wishbone
which transfers the loads to the three or four legged supports.
The assembly of the different elements has to be carefully executed to ensure
correct absorption of the vertical, horizontal, and wind loads by the various parts
of the structure. In this way, only a minimum of additional structural elements is
necessary for adequate wind bracing.
The canopy also possesses a structural stability, resistant to all acting forces
occurring during the lifetime of the building. The possible acting forces are static
loads (permanent loads, including dead weight of the cladding, live loads, thermal
settlement, settlement due to creep in concrete), and dynamic loads (wind loads,
live loads, shocks caused by objects, etc.).