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Fire endurance of FRP-strengthened reinforced concrete columns

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceThe 4th International Conference on Concrete under Severe Conditions (CONSEC'04): 27 June 2004, Seoul, Korea
SubjectFibre-reinforced polymers (FRP); Fibre-reinforced polymers (FRP); Concrete columns
Abstract
In buildings, fire represents one of the most severe environmental conditions and should thus be properly accounted for in the design of structural members. In recent years, there has been an increase in the use of fibre-reinforced polymer (FRP) materials for reinforcement and strengthening of concrete structures in buildings, and this has raised concerns regarding the behaviour of such FRP systems in fire. There is currently very little information available on the fire endurance of FRP-reinforced or strengthenedconcrete systems. This paper presents results from full-scale fire resistance experiments on two FRP-strengthened (wrapped) reinforced concrete (RC) columns. A comparison is made between the fire performances of FRP-strengthened RC columns and a conventional unstrengthened RC column tested previously. Data obtained during the experiments is used to show that the fire behaviour of FRP-wrapped concrete columns, using an appropriate fire protection system, is as good as that of unstrengthened RC columns. Thecritical factors that influence the fire endurance of FRP-reinforced concrete columns, namely the fire protection system, FRP wrapping, loading, and type of aggregate in the concrete, are discussed. It is demonstrated that satisfactory fire resistance ratings for FRP-wrapped concrete columns can be obtained by properly incorporating appropriate fire protection measures into the overall structural system.
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  • Proceedings of the 4th International Conference on Concrete under Severe Conditions (CONSEC'04) (1 June 2004): 872–881.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 46633
NRC-IRC-15775
NPARC number20386116
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Record identifier977814a0-7356-4ce9-9545-f206909e3811
Record created2012-07-25
Record modified2020-04-17
Date modified: