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Design of Light Steel‐framed Walls for Fire Resistance
Author(s) -
Gerlich J. T.,
Collier P. C. R.,
Buchanan A. H.
Publication year - 1996
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/(sici)1099-1018(199603)20:2<79::aid-fam566>3.0.co;2-n
Subject(s) - fire resistance , forensic engineering , poison control , resistance (ecology) , engineering , fire safety , architectural engineering , structural engineering , environmental science , materials science , composite material , medical emergency , civil engineering , medicine , ecology , biology
Light steel‐frame building systems are becoming more prevalent in commercial, industrial and residential construction in New Zealand. Tested fire resistance ratings are generally available for non‐load‐bearing systems, but not for load‐bearing applications. This study investigates the performance of load‐bearing light steel‐frame systems exposed to fire. Methods are presented for calculating the reduction of steel strength and stiffness at elevated temperatures, and for predicting the deflections resulting from temperature gradients and P‐Δ effects. Heat transfer modelling by computer is used to predict steel framing temperatures for systems exposed to the standard ISO 834 time–temperature curve and real fires. Three full‐scale furnace tests were carried out to evaluate analytical predictions. A design procedure is proposed.