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    <type>report</type>
    <publisherName>National Research Council of Canada. Construction</publisherName>
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    <title language="eng">Addendum to RR-335: sound transmission through Nail-Laminated Timber (NLT) assemblies</title>
    <abstract language="eng">This report is published as an addendum to NRC Research Report RR-335 “Apparent Sound Insulation in Cross-Laminated Timber Buildings." It is intended that this addendum will be merged with RR-335 in the future as a report for predicting the sound insulation in buildings using mass-timber constructions including NLT assemblies. This report presents the results from experimental studies of airborne sound transmission through assemblies of nail-laminated timber (NLT) with various linings. To put the data presented in this report in the proper context, this report begins with a brief explanation of calculation procedures to predict the apparent sound transmission class (ASTC) between adjacent spaces in a building whose structure is a combination of mass-timber assemblies such as nail-laminated timber (NLT) or cross-laminated timber (CLT) panels.</abstract>
    <identifier type="doi">10.4224/40000417</identifier>
    <enrichment key="opus.import.date">2022-05-09T14:52:38+00:00</enrichment>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Jeffrey Mahn</author>
    <author>David Quirt</author>
    <author>Christoph Höller</author>
    <author>Markus Müller-Trapet</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
    <collection role="othforschungsschwerpunkt" number="16313">Gebäude und Infrastruktur</collection>
  </doc>
  <doc>
    <id>3876</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition>5th edition</edition>
    <issue/>
    <volume/>
    <type>report</type>
    <publisherName>National Research Council of Canada. Construction</publisherName>
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    <title language="eng">Guide to calculating airborne sound transmission in buildings</title>
    <abstract language="eng">In recent years, the science and engineering for controlling sound transmission in buildings have shifted from a focus on individual assemblies such as walls or floors, to a focus on performance of the complete system. Standardized procedures for calculating the overall transmission, combined with standardized measurements to characterize sub-assemblies, provide much better prediction of sound transmission between adjacent indoor spaces. The International Standards Organization (ISO) has published a calculation method, ISO 15712-1 that uses laboratory test data for sub-assemblies such as walls and floors as inputs for a detailed procedure to calculate the expected sound transmission between adjacent rooms in a building. This standard works very well for some types of construction, but to use it in a North American context one must overcome two obstacles – incompatibility with the ASTM standards used by our construction industry, and low accuracy of its predictions for lightweight wood or steel frame construction. To bypass limitations of ISO 15712-1, this Guide explains how to merge ASTM and ISO test data in the ISO calculation procedure, and provides recommendations for applying extended measurement and calculation procedures for specific common types of construction. This Guide was developed in a project established by the National Research Council of Canada to support the transition of construction industry practice to using apparent sound transmission class (ASTC) for sound control objectives in the National Building Code of Canada (NBCC). However, the potential range of application goes beyond the minimum requirements of the NBCC – the Guide also facilitates design to provide enhanced sound insulation, and should be generally applicable to construction in both Canada and the USA. This publication contains a limited set of examples for several types of construction, to provide an introduction and overview of the ASTC calculation procedure. Additional examples and measurement data can be found in the companion documents to this Guide, namely NRC Research Reports RR-333 to RR-337. Furthermore, the calculation procedure outlined and illustrated in this Guide is also used by the software web application soundPATHS, which is available for free on the website of the National Research Council of Canada (see the references in Section 7 of this Guide for access details).&#13;
Au cours des dernières années, les scientifiques et les ingénieurs ont fait porter leurs efforts en matière d’atténuation de la transmission du son dans les bâtiments davantage sur le rendement du système dans sa totalité que sur les ensembles de construction individuels. Les méthodes normalisées de calcul de la transmission globale, combinées à des mesures normalisées de caractérisation des sous-ensembles, permettent de mieux prédire la transmission du son entre des espaces intérieurs adjacents. L’Organisation internationale de normalisation (ISO) a publié une méthode de calcul, la norme ISO 15712-1, qui utilise des données d’essai en laboratoire pour les sous-ensembles, comme les murs et les planchers, comme données d’entrée en vue d’une méthode détaillée de calcul de la transmission du son prévue entre des pièces adjacentes dans un bâtiment. Cette norme fonctionne très bien pour certains types de construction, mais pour l’utiliser dans un contexte nord-américain, il faut surmonter deux obstacles – l’incompatibilité avec les normes ASTM utilisées par notre industrie de la construction et la faible exactitude de ses prévisions pour la construction à ossature de bois ou d’acier légère. Pour contourner les limites de la norme ISO 15712-1, le présent guide explique comment fusionner les données d’essai de l’ISO et de l’ASTM dans la méthode de calcul de l’ISO, et formule des recommandations relativement à l’application de méthodes élargies de mesure et de calcul pour des types de construction courants. Le présent guide a été élaboré dans le cadre d’un projet mis sur pied par le Conseil national de recherches du Canada afin d’appuyer la transition de la pratique de l’industrie de la construction vers l’utilisation d’un indice de transmission du son apparent (ITSA) satisfaisant aux objectifs de réduction rigoureux du Code national du bâtiment du Canada (CNBC). Toutefois, l’éventail potentiel d’applications va au-delà des exigences minimales du CNBC – le Guide facilite aussi une conception visant à améliorer l’insonorisation et devrait s’appliquer de façon générale à la construction tant au Canada qu’aux États-Unis. La présente publication contient un ensemble limité d’exemples pour plusieurs types de construction, afin de fournir une introduction et un aperçu de la méthode de calcul de l’ITSA. On trouvera d’autres exemples et données de mesure dans les documents d’accompagnement du présent guide, à savoir, les rapports de recherche RR-333 à RR-337 du CNRC. De plus, la méthode de calcul décrite et illustrée dans le présent guide est également utilisée par l’application Web soundPATHS, disponible gratuitement sur le site Web du Conseil national de recherches du Canada (voir les références à la section 7 du présent guide pour les détails d’accès).</abstract>
    <identifier type="doi">10.4224/40001814</identifier>
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    <enrichment key="OtherSeries">Research Report (National Research Council of Canada. Construction); no. RR- 331</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Christoph Höller</author>
    <author>David Quirt</author>
    <author>Jeffrey Mahn</author>
    <author>Markus Müller-Trapet</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>airborne sound</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>apparent sound transmission class</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ASTC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>building</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>building acoustics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CLT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>concrete</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>cross-laminated timber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Delta STC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>flanking</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>hybrid</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>impact noise</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ISO 12354</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ISO 15712</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Kij</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>linings</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>masonry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>National Building Code Canada</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>NBCC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>precast</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>sound</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>sound transmission</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>sound transmission class</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>STC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>steel-framed</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>structure-borne sound</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>timber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>transmission</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>wood-framed</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ΔSTC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ΔTL</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
    <collection role="othforschungsschwerpunkt" number="16313">Gebäude und Infrastruktur</collection>
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