The influence of the traffic spectra characteristics on the indoor noise transmitted by windows is evaluated by means of in the field measurements. Fourteen different traffic noise spectra are registered, choosing different situations of traffic speed and intensity conditions, both for vehicles and trains. Spectra are reproduced outside a typical residential building: the measurement methodology is the same of the one given by the standard 140-5, but further than the classic pink or white noise all the fourteen spectra are tested. The A weighted levels abatements depend strictly on the different kind of spectra with no changeability of the window performances. Moreover, the paper contains a comparison between the spectrum adaptation terms C and Ctr given by the standard ISO 717-1 to correct the façade insulation index.
Sound insulation performances of windows: evaluation of the influence of different traffic noise spectra in laboratory and field measurement
BURATTI, Cinzia;MORETTI, ELISA;VERGONI, MARCO
2010
Abstract
The influence of the traffic spectra characteristics on the indoor noise transmitted by windows is evaluated by means of in the field measurements. Fourteen different traffic noise spectra are registered, choosing different situations of traffic speed and intensity conditions, both for vehicles and trains. Spectra are reproduced outside a typical residential building: the measurement methodology is the same of the one given by the standard 140-5, but further than the classic pink or white noise all the fourteen spectra are tested. The A weighted levels abatements depend strictly on the different kind of spectra with no changeability of the window performances. Moreover, the paper contains a comparison between the spectrum adaptation terms C and Ctr given by the standard ISO 717-1 to correct the façade insulation index.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
