Abstract
Using a pragmatic engineering approximation to the joint extreme-value approach to wind loading, a comprehensive parametric study has been made of wind loading on isolated canopy structures. Design extreme pressures have been calculated for the complete set of geometrical parameter options and combined into worst-case envelopes for extreme (4 s averaging time) pressures spatially averaged over whole- and half-roof areas, and for extreme (1 s averaging time) cladding-element pressures to be used in various zones of the canopy surface. The envelopes are suitable for inclusion in revised wind-loading codes that are based upon the joint extreme rather than the existing quasi-static approach to wind loading. A comparison between the two approaches is made.
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