Performance of fire of FRP-confined reinforced concrete columns

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Conference4th International Conference on Advanced Composite Materials in Bridges and Structures: 20 July 2004, Calgary, Alberta
Pages18; # of pages: 8
SubjectFibre-reinforced polymers (FRP); Bridges; Performance of:; Concrete columns; Fibre-reinforced polymers (FRP); Concrete
AbstractOver the past decade, research has shown that fibre reinforced polymers (FRPs) can be efficiently, economically, and safely be used for strengthening and rehabilitation of reinforced concrete (RC) structures. However, relatively little is known about the behaviour of FRP materials at high temperature, and this is a primary factor limiting the widespread application FRP materials in buildings, parking garages, and industrial structures. This paper presents the results of a numerical and experimental program to investigate the fire performance of FRP-wrapped (confined) RC columns. The primary objectives of this research project were: to experimentally investigate the behaviour in fire of FRP-wrapped and insulated RC columns; to develop numerical models to simulate the behaviour in fire of these members; to investigate techniques to improve their behaviour in fire; and to use data from experimental and numerical studies to provide fire-design guidance. Experimental data are presented from full-scale fire endurance tests conducted on three FRP-wrapped RC columns at the National Research Council of Canada (NRC). A numerical model is presented, which is capable of predicting the thermal and structural response of an FRP-wrapped concrete column under exposure to a standard fire. The model is shown to adequately predict the observed response of FRP-wrapped columns in fire. It is demonstrated that, while currently available FRPs are sensitive to the effects of elevated temperatures, appropriately designed and insulated FRP-wrapped RC columns are capable of achieving satisfactory fire endurances.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number46966
NPARC number20377214
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Record identifier4d94d210-4869-4c92-9a94-b15513e25ad1
Record created2012-07-24
Record modified2016-05-09
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