MAPEAMENTO ACÚSTICO COMO FERRAMENTA PARA DETERMINAÇÃO DO ÍNDICE DE ISOLAÇÃO SONORA DE ESQUADRIAS

Abstract

This research aims to measure and evaluate the environmental noise generated by automotive vehicles and to analyze the interference of urban noise in environments such as classrooms, in accordance with the parameters of standard NBR 10152/2017. For that, a study area was defined, containing the main roads of the surroundings of the building, being highlighted six (6) main points to be evaluated. Then, measurements of the sound pressure levels were carried out and the standard NBR 10151/2000 was used, establishing conditions for the evaluation of the noise acceptability, to carry out data collection of the vehicular traffic study, which will serve as data input for the simulation computational. In this analysis, it was found that the main routes have a very dense traffic volume and the sound pressure level (NPS) is with noise levels above the levels allowed by standard NBR 10151/2000. From the criterion of 35dB(A) established by standard NBR 10152/2017 for classrooms, the sound insulation index (RW) of the frames in the case study environments was calculated. Finally, it is concluded that the analysis of environmental noise plays a fundamental role in meeting the criterion of internal comfort, which, in turn, will determine the necessary RW of the frames.