Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional Manancial UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/7923 |
Resumo: | The aim of this research is to evaluate sound insulation behavior of double windows, when a second window is placed upon a previous one, keeping an air layer between them. This was done through standard tests carried out at the reverberation chambers of the Thermo Acoustics Laboratory, of Universidade Federal de Santa Maria in accordance with ISO 140-III, ISO 717-I international norms and the Brazilian Norm Project 02:135.01-001. First, low air hermetic windows were duplicated, each one having Rw = 18 dB. Second, good air hermetic windows were duplicated. The objective, through this technique, was to find out sound insulation improvement of double windows under the two mentioned circumstances. Observing the test results, it was verified that low air hermetic double window obtained Rw = 26 dB, with an increase of 8 dB in relation to just one window of the same typology. Insulation gain, in this case, occurred mainly in medium and high frequencies. In relation to good air hermetic double window, a Rw final of 37 dB was obtained, considering that the increase in sound insulation depends on the initial performance of the fist installed window. The gain in insulation in the second instance was between 4 to 8 dB, mainly in relation to low and medium frequencies. Therefore, it was possible to quantify which sound insulation improvement could be done on façades employing the technique of double windows in order to contribute to the betterment and quality of buildings in Brazil |
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2007-08-162007-08-162007-03-28OLIVEIRA, Marco Aurélio de. Study of double windows efficiency in order to improve their sound insulation. 2007. 85 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2007.http://repositorio.ufsm.br/handle/1/7923The aim of this research is to evaluate sound insulation behavior of double windows, when a second window is placed upon a previous one, keeping an air layer between them. This was done through standard tests carried out at the reverberation chambers of the Thermo Acoustics Laboratory, of Universidade Federal de Santa Maria in accordance with ISO 140-III, ISO 717-I international norms and the Brazilian Norm Project 02:135.01-001. First, low air hermetic windows were duplicated, each one having Rw = 18 dB. Second, good air hermetic windows were duplicated. The objective, through this technique, was to find out sound insulation improvement of double windows under the two mentioned circumstances. Observing the test results, it was verified that low air hermetic double window obtained Rw = 26 dB, with an increase of 8 dB in relation to just one window of the same typology. Insulation gain, in this case, occurred mainly in medium and high frequencies. In relation to good air hermetic double window, a Rw final of 37 dB was obtained, considering that the increase in sound insulation depends on the initial performance of the fist installed window. The gain in insulation in the second instance was between 4 to 8 dB, mainly in relation to low and medium frequencies. Therefore, it was possible to quantify which sound insulation improvement could be done on façades employing the technique of double windows in order to contribute to the betterment and quality of buildings in BrazilA proposta deste trabalho é avaliar o comportamento da isolação sonora de janelas duplas, em que uma segunda janela é sobreposta a outra já existente, havendo entre ambas uma camada de ar. Tal determinação é feita mediante ensaios normalizados nas câmaras reverberantes do Laboratório de Termo Acústica da Universidade Federal de Santa Maria, de acordo com as normas internacionais ISO 140-III, ISO 717-I e Projeto de Norma Brasileira 02:135.01-001. Inicialmente foram duplicadas janelas com baixa estanqüeidade ao ar, tendo Rw = 18 dB cada uma, e a seguir, janelas com boa estanqüeidade. Buscou-se, através dessa técnica, conhecer o desempenho sonoro da duplicação de janelas nestas duas situações consideradas. A partir dos resultados dos ensaios, verificou-se que a duplicação de janelas com baixa estanqüeidade ao ar atingiu um Rw = 26 dB, com acréscimo de 8 dB em relação à uma única janela de mesma tipologia. O ganho de isolamento, nesse caso, ocorreu principalmente nas médias e altas freqüências. Em relação à duplicação de janelas com boa estanqüeidade, atingiu-se um Rw final de 37 dB, sendo o acréscimo no isolamento acústico dependente do desempenho inicial da primeira janela. O ganho em isolamento nesta segunda situação foi de 4 a 8 dB, com incidência sobretudo nas baixas e médias freqüências. Dessa maneira, pôde-se quantificar qual a melhoria do isolamento sonoro em fachadas, a partir da duplicação de janelas, de forma a contribuir para o aperfeiçoamento e qualidade das construções em nosso paísapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Engenharia CivilUFSMBREngenharia CivilAcústicaIsolamento sonoroJanelas duplasAcousticsSound insulationDouble windowsCNPQ::ENGENHARIAS::ENGENHARIA CIVILEstudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentesStudy of double windows efficiency in order to improve their sound insulationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisSantos, Jorge Luiz Pizzutti doshttp://lattes.cnpq.br/9959263691618620Paixão, Dinara Xavier dahttp://lattes.cnpq.br/3967266929672774Simões, Flavio Mayahttp://lattes.cnpq.br/8821905325289264http://lattes.cnpq.br/3959488914405766Oliveira, Marco Aurélio de300100000003400300300300300a192e870-9c5b-4415-8ac6-abf2383b1776c9aac9f7-6bca-4ec3-b1f2-3a85cbd8de71a0f43be1-945f-4341-9706-c36945fe14c9cbb6dbdb-8625-4016-ace4-48b12b1fb738info:eu-repo/semantics/openAccessreponame:Repositório Institucional Manancial UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALoliveira.pdfapplication/pdf1082498http://repositorio.ufsm.br/bitstream/1/7923/1/oliveira.pdf5fab7b64988b45c7cecddfab770c322bMD51TEXToliveira.pdf.txtoliveira.pdf.txtExtracted texttext/plain114629http://repositorio.ufsm.br/bitstream/1/7923/2/oliveira.pdf.txte21146a9688ceff6d76f1e90ca1f36d2MD52THUMBNAILoliveira.pdf.jpgoliveira.pdf.jpgIM Thumbnailimage/jpeg4861http://repositorio.ufsm.br/bitstream/1/7923/3/oliveira.pdf.jpg97bd7f5283ee3da3fee7cdff6934233eMD531/79232022-01-26 16:00:43.558oai:repositorio.ufsm.br:1/7923Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestouvidoria@ufsm.bropendoar:39132022-01-26T19:00:43Repositório Institucional Manancial UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
dc.title.alternative.eng.fl_str_mv |
Study of double windows efficiency in order to improve their sound insulation |
title |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
spellingShingle |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes Oliveira, Marco Aurélio de Acústica Isolamento sonoro Janelas duplas Acoustics Sound insulation Double windows CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
title_full |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
title_fullStr |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
title_full_unstemmed |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
title_sort |
Estudo da eficiência da duplicação de janelas na melhoria do isolamento acústico destes componentes |
author |
Oliveira, Marco Aurélio de |
author_facet |
Oliveira, Marco Aurélio de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Santos, Jorge Luiz Pizzutti dos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9959263691618620 |
dc.contributor.referee1.fl_str_mv |
Paixão, Dinara Xavier da |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/3967266929672774 |
dc.contributor.referee2.fl_str_mv |
Simões, Flavio Maya |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/8821905325289264 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/3959488914405766 |
dc.contributor.author.fl_str_mv |
Oliveira, Marco Aurélio de |
contributor_str_mv |
Santos, Jorge Luiz Pizzutti dos Paixão, Dinara Xavier da Simões, Flavio Maya |
dc.subject.por.fl_str_mv |
Acústica Isolamento sonoro Janelas duplas |
topic |
Acústica Isolamento sonoro Janelas duplas Acoustics Sound insulation Double windows CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.eng.fl_str_mv |
Acoustics Sound insulation Double windows |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
description |
The aim of this research is to evaluate sound insulation behavior of double windows, when a second window is placed upon a previous one, keeping an air layer between them. This was done through standard tests carried out at the reverberation chambers of the Thermo Acoustics Laboratory, of Universidade Federal de Santa Maria in accordance with ISO 140-III, ISO 717-I international norms and the Brazilian Norm Project 02:135.01-001. First, low air hermetic windows were duplicated, each one having Rw = 18 dB. Second, good air hermetic windows were duplicated. The objective, through this technique, was to find out sound insulation improvement of double windows under the two mentioned circumstances. Observing the test results, it was verified that low air hermetic double window obtained Rw = 26 dB, with an increase of 8 dB in relation to just one window of the same typology. Insulation gain, in this case, occurred mainly in medium and high frequencies. In relation to good air hermetic double window, a Rw final of 37 dB was obtained, considering that the increase in sound insulation depends on the initial performance of the fist installed window. The gain in insulation in the second instance was between 4 to 8 dB, mainly in relation to low and medium frequencies. Therefore, it was possible to quantify which sound insulation improvement could be done on façades employing the technique of double windows in order to contribute to the betterment and quality of buildings in Brazil |
publishDate |
2007 |
dc.date.accessioned.fl_str_mv |
2007-08-16 |
dc.date.available.fl_str_mv |
2007-08-16 |
dc.date.issued.fl_str_mv |
2007-03-28 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
OLIVEIRA, Marco Aurélio de. Study of double windows efficiency in order to improve their sound insulation. 2007. 85 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2007. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/7923 |
identifier_str_mv |
OLIVEIRA, Marco Aurélio de. Study of double windows efficiency in order to improve their sound insulation. 2007. 85 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2007. |
url |
http://repositorio.ufsm.br/handle/1/7923 |
dc.language.iso.fl_str_mv |
por |
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por |
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300100000003 |
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openAccess |
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Universidade Federal de Santa Maria |
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Programa de Pós-Graduação em Engenharia Civil |
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UFSM |
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Engenharia Civil |
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Universidade Federal de Santa Maria |
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