A Study on the Sound Insulation Performance of Cross-laminated Timber

Cross-laminated Timber (CLT) has become an emerging board material of wood construction that is strong enough to sustain a high-rise building. However, many wooden congregate housing units overseas that utilize CLT have poor sound environments because the low mass of such wood influences sound insul...

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Main Authors: Jui-Yen Lin, Chieh-Ting Yang, Yaw-Shyan Tsay
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/15/4144
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author Jui-Yen Lin
Chieh-Ting Yang
Yaw-Shyan Tsay
author_facet Jui-Yen Lin
Chieh-Ting Yang
Yaw-Shyan Tsay
author_sort Jui-Yen Lin
collection DOAJ
description Cross-laminated Timber (CLT) has become an emerging board material of wood construction that is strong enough to sustain a high-rise building. However, many wooden congregate housing units overseas that utilize CLT have poor sound environments because the low mass of such wood influences sound insulation performance. In this research, we explored the effect of different CLT walls on sound insulation performance and integrated applicable sound insulation simulation tools to simplify the process of designing a CLT wall structure. This research aimed at a double wall and CLT combined with a gypsum board as the research object. The sound insulation performance test was carried out in a laboratory, while the sound insulation performance of the structure was predicted through simulation tools and prediction models and then compared with the measured values to verify the applicability of the simulation tool. The CLT with a double wall and CLT with gypsum board (CLT + GB) achieved <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>R</mi><mi>w</mi></msub></mrow></semantics></math></inline-formula> of 50 dB. The numerical simulation had better prediction performance than INSUL at the double wall, while the double wall with cavity structure was close to the measured result via mass law calculation. The INSUL-predicted CLT with a gypsum board at 500 Hz~3150 Hz was close to the measured value.
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spelling doaj.art-9cba6445ecee4965933fdd6f065be69d2023-11-22T05:52:21ZengMDPI AGMaterials1996-19442021-07-011415414410.3390/ma14154144A Study on the Sound Insulation Performance of Cross-laminated TimberJui-Yen Lin0Chieh-Ting Yang1Yaw-Shyan Tsay2Department of Architecture, National Cheng Kung University, Tainan 70101, TaiwanDepartment of Architecture, National Cheng Kung University, Tainan 70101, TaiwanDepartment of Architecture, National Cheng Kung University, Tainan 70101, TaiwanCross-laminated Timber (CLT) has become an emerging board material of wood construction that is strong enough to sustain a high-rise building. However, many wooden congregate housing units overseas that utilize CLT have poor sound environments because the low mass of such wood influences sound insulation performance. In this research, we explored the effect of different CLT walls on sound insulation performance and integrated applicable sound insulation simulation tools to simplify the process of designing a CLT wall structure. This research aimed at a double wall and CLT combined with a gypsum board as the research object. The sound insulation performance test was carried out in a laboratory, while the sound insulation performance of the structure was predicted through simulation tools and prediction models and then compared with the measured values to verify the applicability of the simulation tool. The CLT with a double wall and CLT with gypsum board (CLT + GB) achieved <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>R</mi><mi>w</mi></msub></mrow></semantics></math></inline-formula> of 50 dB. The numerical simulation had better prediction performance than INSUL at the double wall, while the double wall with cavity structure was close to the measured result via mass law calculation. The INSUL-predicted CLT with a gypsum board at 500 Hz~3150 Hz was close to the measured value.https://www.mdpi.com/1996-1944/14/15/4144transmission losspredictive modelswooden structure
spellingShingle Jui-Yen Lin
Chieh-Ting Yang
Yaw-Shyan Tsay
A Study on the Sound Insulation Performance of Cross-laminated Timber
Materials
transmission loss
predictive models
wooden structure
title A Study on the Sound Insulation Performance of Cross-laminated Timber
title_full A Study on the Sound Insulation Performance of Cross-laminated Timber
title_fullStr A Study on the Sound Insulation Performance of Cross-laminated Timber
title_full_unstemmed A Study on the Sound Insulation Performance of Cross-laminated Timber
title_short A Study on the Sound Insulation Performance of Cross-laminated Timber
title_sort study on the sound insulation performance of cross laminated timber
topic transmission loss
predictive models
wooden structure
url https://www.mdpi.com/1996-1944/14/15/4144
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