Author(s)

H.Hossam ElDien & P. Woloszyn

Abstract

Balcony form; an approach to reduce sound pressure level into the building fagade H. Hossam ElDien & P. Woloszyn CERIMA, UMR CNRS 1563 Ecole d'Architecture de Nantes, France Abstract In thls paper we discuss the benefits to be gained from the use of one of building forms, namely balconies, expressed in terms of reduction the sound pressure level, in A-weighted scale, into the tall building fa~ade closed to roadway. The results obtained from a 3 dimension numerical model using pyramid tracing model developed by A. Farina. The geometry of the balcony with different widths and an inclined ceiling with different inclined angles is tested. The results indicate that the sound pressure level reduction, in A-weighted scale, obtained from changing balcony depth varies from 4 dB (A) to 11 dB (A), and increases with the increasing of floor level. While the inclined ceiling form is more effective in the higher levels, where the sound pressure level, in A-weighted scale, can be reduced by 6 dB (A). The inc

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