Le présent document spécifie des modèles de calcul permettant de déterminer l'isolement acoustique au bruit de choc entre des locaux à partir, soit de données mesurées de caractérisation de l'élément structural, soit de méthodes théoriques de propagation des sons.Par déduction on arrive à un modèle simplifié avec un domaine d'application limité, qui donne directement un indice d'évaluation à partir de celui des éléments.On trouvera les grands principes de calcul, la liste des grandeurs significatives, les applications et leurs limites.
ISO 12354-3:2017 specifies a calculation model to estimate the sound insulation or the sound pressure level difference of a façade or other external surface of a building. The calculation is based on the sound reduction index of the different elements from which the façade is constructed and it includes direct and flanking transmission. The calculation gives results which correspond approximately to the results from field measurements in accordance with ISO 16283‑3. Calculations can be carried out for frequency bands or for single number ratings. The calculation results can also be used for calculating the indoor sound pressure level due to for instance road traffic (see Annex E). ISO 12354-3:2017 describes the principles of the calculation model, lists the relevant quantities and defines its applications and restrictions.
COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ