Effect of balconies on ventilation inducing aeromotive force on low-rise buildings

Abstract

Data on mean wind pressure distribution on opposite walls of a five storey building model with smooth surface and also with balconies mounted thereon have been presented, and the effect of balconies on ventilation inducing wind forces has been discussed. It is shown that provision of balconies alters wind pressure distribution on windward wall but does not introduce significant change in it on the leeward side. Ventilative force across openings located centrally on opposite walls also remains almost unchanged due to the balconies. However, the ventilative forces across windows located at different heights on the windward wall only, get diminished at all the floors near the upstream end for obliquely incident wind, and over the entire wall width at the intermediate floors for the wind incidence at 90 ° angle on the wall. Enhancement in the ventilation inducing wind forces is caused at the top floors on the downstream side for obliquely incident wind, and near the ends of the wall at the ground and top floors for the wind impinging at right angle on the wall.