Laboratory Studies on the Effect of External Projections on Wind Pressure Distribution on Low-Rise Buildings

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Abstract
The paper describes the effect of external projections on wind pressure distribution on the windward wall of buildings. It is noted that horizontal projection located above the stagnation zone produces insignificant change in the wind pressure at points underneath the projection and reduces the pressure at the wall surface above the projection. Contrary to this, horizontal projection below the stagnation point enhances the pressure at points above the projection and causes reduction in pressure at location below the projection. A vertical projection provided right at the edge of the wall enhances wind pressure at points close to the wall end, but a projection located slightly away from the wall edge causes reduction in wind pressure at points between the projection and the edge of the wall.

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