Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil

Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil

Brazilian Architecture has shown constant changes in techniques and construction materials reflecting on the quality of buildings. In the case of sound insulation of dwellings, the result, in general, has been negative. With the advent of the NBR 15575, published in 2013 by the “Associação Brasileir...

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Главные авторы: Penedo, Rafaella Cristina Teixeira, Oiticica, Maria Lúcia Gondim da Rosa
Формат: Online
Язык:por
Опубликовано: Universidade Estadual de Campinas 2014
Online-ссылка:https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634533
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spelling oai:ojs.periodicos.sbu.unicamp.br:article-86345332019-06-17T15:21:11Z Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil Isolamento sonoro aéreo de partições verticais de um apartamento em Maceió-AL Brasil Penedo, Rafaella Cristina Teixeira Oiticica, Maria Lúcia Gondim da Rosa Isolamento sonoro. Avaliação de desempenho. Desempenho acústico. Sound insulation. Performance evaluation. Acoustic performance. Brazilian Architecture has shown constant changes in techniques and construction materials reflecting on the quality of buildings. In the case of sound insulation of dwellings, the result, in general, has been negative. With the advent of the NBR 15575, published in 2013 by the “Associação Brasileira de Normas Técnicas - ABNT”, which establishes minimum requirements for the various elements of construction in favor of the performance of buildings, construction companies will have to adapt the new construction to the limits and requirements it establishes. The general objective of this work is to evaluate, through field measurements, the level of sound insulation (airborne noise) of two vertical partitions of the living room of an apartment in Maceió-AL-Brazil on two parameters established in NBR 1557: Weighted Standardised Sound Level Difference (D’nT,w) and Weighted Standardised Sound Level Difference of the façade (D’2m,nT,w). It has been found that airborne sound insulation levels are lower than those recommended by the standard, demonstrating the inadequacy, from the acoustic point of view, of the materials used in the composition of the walls. It’s clear the need to assess and to monitor the acoustic performance, and also to present design strategies and constructive interventions for the comfort and privacy of users. A arquitetura brasileira tem apresentado constantes mudanças nas técnicas e nos materiais de construção com reflexos na qualidade das construções. No caso do isolamento sonoro de habitações, o resultado, em geral, tem sido negativo. Com o advento da norma de desempenho de edificações habitacionais, a NBR 15575, publicada no ano de 2013 pela Associação Brasileira de Normas Técnicas - ABNT e que estabelece os requisitos mínimos para os diversos elementos de construção em favor do desempenho dos edifícios, as empresas de construção civil terão que adequar a nova construção aos limites e aos requisitos estabelecidos pela norma. O objetivo geral deste trabalho é avaliar, por meio de medições de campo, o nível de isolamento sonoro (ruído aéreo) de duas partições verticais da sala de estar de um apartamento em Maceió-AL-Brasil através de dois parâmetros estabelecidos na NBR 15575: a Diferença Padronizada de Nível Ponderada (D’nTw) e a Diferença Padronizada de Nível Ponderada a 2 m de distância da fachada (D’2m,nT,w). Verificou-se que os níveis de isolamento sonoro aéreo encontrados são inferiores aos recomendados pela norma, demonstrando a insuficiência, do ponto de vista acústico, dos materiais utilizados na composição das paredes. É clara a necessidade, não apenas, de avaliar e monitorar o desempenho acústico, mas também de maior preocupação com estratégias de projeto e de intervenções construtivas que proporcionem aos usuários condições adequadas de conforto e de privacidade. Universidade Estadual de Campinas 2014-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Field study Pesquisa Experimental application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634533 10.20396/parc.v5i2.8634533 PARC Pesquisa em Arquitetura e Construção; Vol. 5 No. 2 (2014): Acoustic quality of the built environment; 7-14 PARC Pesquisa em Arquitetura e Construção; Vol. 5 Núm. 2 (2014): Qualidade acústica do ambiente construído; 7-14 PARC Pesquisa em Arquitetura e Construção; v. 5 n. 2 (2014): Qualidade acústica do ambiente construído; 7-14 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634533/2454 Copyright (c) 2018 PARC Pesquisa em Arquitetura e Construção
institution Universidade Estadual de Campinas
collection OJS
language por
format Online
author Penedo, Rafaella Cristina Teixeira
Oiticica, Maria Lúcia Gondim da Rosa
spellingShingle Penedo, Rafaella Cristina Teixeira
Oiticica, Maria Lúcia Gondim da Rosa
Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil
author_facet Penedo, Rafaella Cristina Teixeira
Oiticica, Maria Lúcia Gondim da Rosa
author_sort Penedo, Rafaella Cristina Teixeira
title Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil
title_short Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil
title_full Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil
title_fullStr Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil
title_full_unstemmed Airborne sound insulation of vertical partitions of an apartment in Maceió-AL Brazil
title_sort airborne sound insulation of vertical partitions of an apartment in maceió-al brazil
description Brazilian Architecture has shown constant changes in techniques and construction materials reflecting on the quality of buildings. In the case of sound insulation of dwellings, the result, in general, has been negative. With the advent of the NBR 15575, published in 2013 by the “Associação Brasileira de Normas Técnicas - ABNT”, which establishes minimum requirements for the various elements of construction in favor of the performance of buildings, construction companies will have to adapt the new construction to the limits and requirements it establishes. The general objective of this work is to evaluate, through field measurements, the level of sound insulation (airborne noise) of two vertical partitions of the living room of an apartment in Maceió-AL-Brazil on two parameters established in NBR 1557: Weighted Standardised Sound Level Difference (D’nT,w) and Weighted Standardised Sound Level Difference of the façade (D’2m,nT,w). It has been found that airborne sound insulation levels are lower than those recommended by the standard, demonstrating the inadequacy, from the acoustic point of view, of the materials used in the composition of the walls. It’s clear the need to assess and to monitor the acoustic performance, and also to present design strategies and constructive interventions for the comfort and privacy of users.
publisher Universidade Estadual de Campinas
publishDate 2014
url https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634533
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