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In situ measured flanking transmission in light weight timber houses with elastic flanking isolators
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
2013 (English)In: InterNoise 2013: Noise control for quality of life, INnsbruck, 2013, Vol. 3, 1899-1908 p., 1019Conference paper (Refereed)
Abstract [en]

There is a strong trend to industrially produce multi-storey light weight timber based houses. This concept allows the buildings to be manufactured to a more or less prefabricated extent. Most common types are volume/room modules or flat wall and floor modules. When assembling the modules at the building site, elastomer isolators are used in several constructions to reduce flanking transmission. The sound insulation demands in the Nordic countries are relatively high and therefore the flanking transmission must be well controlled, where elastomer isolators are an alternative. Decoupled radiation isolated walls is another. There are though no working studies or mathematical models of the performance of these isolators. They are only treated as simple mass-springs systems that operate vertically, i.e. one degree of freedom. In this paper there is an analysis of experimentally data of the structure borne sound isolating performance of elastomer isolators that are separating an excited floor from receiving walls. The performance dependence of structure type is also presented. An empirically based regression model of the vibration level difference is derived. The model is based on measurements of six elastomer field installations, which are compared to five comparable installations without elastomers. A goal is that the model can be used for input in future SEN prediction models for modeling of sound insulation.

Place, publisher, year, edition, pages
INnsbruck, 2013. Vol. 3, 1899-1908 p., 1019
Keyword [en]
Civil engineering and architecture - Building engineering, Natural sciences - Physics
Keyword [sv]
Byggnadsakustik, akustik, Samhällsbyggnadsteknik och arkitektur - Byggnadsteknik, Naturvetenskap - Fysik
Research subject
Engineering Acoustics
URN: urn:nbn:se:ltu:diva-38424Local ID: cd314d3c-5717-4945-a7aa-33f93b8fcf28ISBN: 9781632662675OAI: diva2:1011925
International Congress and Exposition on Noise Control Engineering : 15/09/2013 - 18/09/2013
Godkänd; 2013; 20131106 (anag)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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Ågren, AndersLjunggren, Fredrik
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