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Difracción acústica por fachadas escalonadas y su aplicación a la arquitectura modernista: una aproximación de su protección acústica

AuthorsSimón, Francisco; Rodríguez, Rosa M.; Pfretzschner, Jaime
KeywordsAcoustic behaviour
Buildings with stepped profiles
Noise levels
Diffracted field
Issue DateOct-1999
PublisherSociedad Española de Acústica
CitationXXX Jornadas Nacionales de Acústica – TecniAcústica 1999. Acústica Física y Procesado de Señales ; AFS09
AbstractBuildings with stepped profiles, not only present aesthetical aspects including an increase of luminosity in narrow streets, but also may show better acoustical performances. These profiles may diminish the cannon effect and the noise pressure levels on the building façade, which in turn, may reduce intruding noise levels, inside such buildings.
The diffracted field due to every building dihedral is calculated starting from Pierce expressions, where Fresnel integrals has been substituted by Hutchings polynomials, obtaining a better approximation than Pierce’s. Besides, these polynomials are valid for all the argument values, avoiding the restrictions of the approximation suggested by Pierce.
This work shows both qualitatively as quantitatively some acoustical advantages of this kind of buildings comparing them with prismatic ones.
Description6 pp.-- PACS nr.: 43.20.Gp, 43.50.Gf.-- Comunicación presentada en los siguientes congresos: XXX Jornadas Nacionales de Acústica – TecniAcústica 1999. Encuentro Ibérico de Acústica (Ávila, 20-22 Octubre 1999). Publicado en número especial de la Revista de Acústica: Vol 30(1999).
Appears in Collections:(IA) Comunicaciones congresos
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