| Résumé | There have been numerous efforts to improve the quality of residential building environments in North America, including efforts to meet public demands for better acoustic isolation. Also, new construction materials have been developed and many construction practices and product specifications have changed over the past several years. In response to the changes and to provide solutions to designers and fire protection engineers, the National Research Council of Canada, Institute for Research in Construction, in collaboration with industry and goverment partners carried out a research program to measure the fire resistance and acoustic performance of full-scale floor assemblies. This paper presents and discusses the results of 82 full-scale fire resistance tests of wood joist, wood-I joist, steel C-joist and wood truss floor systems in accordance with the ULC-S101 standard, which is similar to the ASTM E119 fire resistance standard as part of the research program on the fire and acoustical performance of floor assemblies. Parameters investigated in this study include attachment of the gypsum board to resilient channels, insulation type, number of gypsum board layers, joist spacing and type, installation of resilient channels, resilient channel spacing, sub-floor type and structural load. Temperatures throughout the floor systems and floor deflection were measured. Using these results, the effects of the above-mentioned parameters on the fire resistance performance of floor assemblies are discussed. |
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