Acoustical performance of Brazilian dwellings: party walls
This paper presents a study on the architectural evolution of Brazilian dwellings along the centuries, from a perspective that is distinct from other historical approaches: the sound insulation. Initially the most important events that have modified the use patterns of houses and, consequently, chan...
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2008
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| Linkit: | https://seer.ufrgs.br/ambienteconstruido/article/view/3748 |
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ojs-article-37482008-04-28T17:10:49Z Acoustical performance of Brazilian dwellings: party walls Desempenho acústico na arquitetura residencial brasileira: paredes de vedação Duarte, Elisabeth de Albuquerque Cavalcanti Viveiros, Elvira Barros Isolamento sonoro; Acústica de edificações; História da Arquitetura; Vedações This paper presents a study on the architectural evolution of Brazilian dwellings along the centuries, from a perspective that is distinct from other historical approaches: the sound insulation. Initially the most important events that have modified the use patterns of houses and, consequently, changed their acoustical performance are described. The second part of the article presents an investigation on the main building systems along different periods of Brazilian history, considering their relationship with acoustical performance, and discusses the theory of the transmission loss of single panels. Then, analytical predictions of the sound insulation are made for the party walls that were selected as the most important ones in the historical study. As results, the decrease in the acoustical performance of building partitions along history is quantified. The study pointed out that ordinary partitions found in the vast majority of new Brazilian residential buildings perform worse than the ones in older buildings: some walls have an average insulation of about 20 dB lower when compared to the ones used in the past. Este artigo apresenta um estudo da evolução da arquitetura da moradia brasileira pelos séculos, a partir de um ponto de vista não encontrado nas abordagens históricas: o isolamento acústico. Primeiramente descreve-se os principais eventos que modificaram a função da casa e que, em conseqüência, transformaram sua qualidade acústica. Na segunda parte do artigo apresenta-se um levantamento dos principais processos construtivos brasileiros na história, em razão de sua relação muito próxima com o desempenho acústico, e, também, discute a teoria de isolamento sonoro de paredes. Posteriormente são feitas as predições analíticas da transmissão sonora das vedações brasileiras destacadas como mais significativas no levantamento histórico. Como resultado, a queda significativa, ao longo do tempo, no nível do isolamento sonoro oferecido pelas partições é quantificada. Destaca-se o fato de que as paredes rotineiramente encontradas nas construções residenciais atuais têm pior desempenho do que as antigas e de que determinadas vedações chegam a isolar menos, quase 20 dB, quando comparadas com as do passado. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3748 Ambiente Construído; v. 7, n. 3 (2007); 159-171 Ambiente Construído; v. 7, n. 3 (2007); 159-171 Ambiente Construído; v. 7, n. 3 (2007); 159-171 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3748/2101 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
| collection |
OJS |
| language |
por |
| format |
Online |
| author |
Duarte, Elisabeth de Albuquerque Cavalcanti Viveiros, Elvira Barros |
| spellingShingle |
Duarte, Elisabeth de Albuquerque Cavalcanti Viveiros, Elvira Barros Acoustical performance of Brazilian dwellings: party walls |
| author_facet |
Duarte, Elisabeth de Albuquerque Cavalcanti Viveiros, Elvira Barros |
| author_sort |
Duarte, Elisabeth de Albuquerque Cavalcanti |
| title |
Acoustical performance of Brazilian dwellings: party walls |
| title_short |
Acoustical performance of Brazilian dwellings: party walls |
| title_full |
Acoustical performance of Brazilian dwellings: party walls |
| title_fullStr |
Acoustical performance of Brazilian dwellings: party walls |
| title_full_unstemmed |
Acoustical performance of Brazilian dwellings: party walls |
| title_sort |
acoustical performance of brazilian dwellings: party walls |
| description |
This paper presents a study on the architectural evolution of Brazilian dwellings along the centuries, from a perspective that is distinct from other historical approaches: the sound insulation. Initially the most important events that have modified the use patterns of houses and, consequently, changed their acoustical performance are described. The second part of the article presents an investigation on the main building systems along different periods of Brazilian history, considering their relationship with acoustical performance, and discusses the theory of the transmission loss of single panels. Then, analytical predictions of the sound insulation are made for the party walls that were selected as the most important ones in the historical study. As results, the decrease in the acoustical performance of building partitions along history is quantified. The study pointed out that ordinary partitions found in the vast majority of new Brazilian residential buildings perform worse than the ones in older buildings: some walls have an average insulation of about 20 dB lower when compared to the ones used in the past. |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2008 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/3748 |
| work_keys_str_mv |
AT duarteelisabethdealbuquerquecavalcanti acousticalperformanceofbraziliandwellingspartywalls AT viveiroselvirabarros acousticalperformanceofbraziliandwellingspartywalls AT duarteelisabethdealbuquerquecavalcanti desempenhoacusticonaarquiteturaresidencialbrasileiraparedesdevedacao AT viveiroselvirabarros desempenhoacusticonaarquiteturaresidencialbrasileiraparedesdevedacao |
| _version_ |
1709370590655152128 |