Sound transmission through a double leaf partition with edge flanking

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TypeArticle
Journal titleJournal of the Acoustical Society of America
Volume101
IssueFebruary 2
Pages964969; # of pages: 6
SubjectFlanking
AbstractLightweight double leaf partitions are widely used and with proper design give good sound isolation. However, when these walls are used as party walls between dwellings, then precautions are necessary to prevent the transmission of fire and smoke. This is usually carried out by placing a firestop in the cavity. This firestop introduces flanking transmission paths reducing the airborne transmission loss of the wall. A simple model is developed which can predict vibration transmission across this type of structural connection. The structural vibration transmission loss can then be used with a more general statistical energy analysis model to give the sound transmission through the entire system. Predicted airborne transmission loss results for a variety of different materials are compared with measured results and good agreement is obtained.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number41501
7971
NPARC number20338116
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Record identifiercf736972-9886-4cda-b072-1b01e3e7cc9f
Record created2012-07-19
Record modified2016-05-09
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