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On predicting structure borne sound transmission from wood studs to direct-attached gypsum board

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceThe International Congress on Acoustics: 04 April 2004, Kyoto, Japan
Subjectprediction; sound transmission; mobility,; SEA; wood stud walls; gypsum board; Walls
Abstract
A number of assumptions and simplifications are introduced when applying the mobility approach to predict structure borne transmission from wood studs to gypsum board that is directly attached by screws or nails. This paper examines the error introduced by three of the many simplifications. It is shown that studs do deform volumetrically, and there is a strong dependence on contact area between the studs and gypsum board. Also transmission at ill-defined contact points between the fastening points becomes important when there are few fasteners. Assumptions that ignore these factors may introduce bias errors but these oppose each other so that it is possible to achieve reasonable agreement between measured and predicted results despite incorrect theoretical foundations.
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  • Proceedings of the International Congress on Acoustics: 04 April 2004, Kyoto, Japan (1 April 2004): 1–4.
LanguageEnglish
Peer reviewedNo
NRC numberNRCC 46789
NRC-IRC-15998
NPARC number20386516
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Record identifier43918659-c44e-4ed9-8b5c-f7a0deaca1a7
Record created2012-07-25
Record modified2020-04-17
Date modified: