Fire resistance of steel C-joist floor assemblies

  1. (PDF, 1 MB)
  2. Get@NRC: Fire resistance of steel C-joist floor assemblies (Opens in a new window)
DOIResolve DOI:
AuthorSearch for:
Journal titleFire Technology
IssueDec 4
Pages137; # of pages: 37
AbstractThis paper discusses the factors that affect the fire resistance performance of lightweight steel-framed (LSF) unrestrained floor assemblies protected with Type X gypsum board ceiling finishes. Sixteen fire resistance experiments were conducted on full-scale load-bearing steel C-joist floor assemblies using the ULC standard fire exposure time?temperature curve that is similar to ASTM E119 standard. Parametersinvestigated in this study include the effects of insulation installation, insulation type, joist spacing, resilient channel installation, resilient channel spacing, type of sub-floor layer and number of sub-floor layers versus number of gypsum board layers. The impact of these parameters on the fire resistance of steel C-joist frame floor assemblies is discussed. The fire resistance of LSF floors appears to be essentially governedby the number of gypsum board layers, spacing of the joists or resilient channels where the gypsum boards are attached, sub-floor type and insulation type. Other parameters are of secondary importance.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number45652
NPARC number20377267
Export citationExport as RIS
Report a correctionReport a correction
Record identifiera4770871-8bbd-446b-9e0f-c318e06026f4
Record created2012-07-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)