Variation of Wind Load Distribution on Gable Roof Building With Varying Length of Attached Canopy

Abstract

Generally a slab called canopy is provided at the entrance door of building at ground level. Present paper deals with wind tunnel study carried out for finding the effect of length of canopy on wind loads on gable roof buildings. The rigid models of gable roof buildings with varying canopy length have been prepared. The models are made of Perspex sheet having pressure points on all the surfaces to measure pressure distribution. All the models are tested in the closed circuit wind tunnel to study the influence of canopy length and wind incidence angle on wind pressure distribution. It is concluded that the pressure or suction coefficients on the canopy surfaces are widely influences by the length of the attached canopy.