Fire endurance of high strength concrete columns

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Journal titleFire Technology - Special Issue
IssueJanuary 1
Pages7387; # of pages: 15
Subjectfire resistance, fire endurance, high strength concrete, high temperature behavior, reinforced concrete columns; High performance / High strength concrete; Concrete columns
AbstractIn buildings, fire represents one of the most severe environmental conditions and therefore, should be properly accounted for in the design of high strength concrete (HSC) structural members. The increased use of HSC in buildings has raised concerns regarding the behaviour of such concrete in fire. In particular, spalling at elevated temperatures, as identified in studies by a number of laboratories, is a main concern.In this paper, results from an experimental program on the fire resistance of HSC columns are presented. The factors that influence the thermal and structural behaviour of HSC concrete columns under fire conditions are discussed. Data from this study indicate that the type of aggregate, concrete strength, load intensity and detailing and spacing of ties have an influence on the fire resistance performance of HSC columns. Further, the test results show that tie configuration (bending of ties at 135° ties and provision of cross ties) and closer tie spacing has a significantly beneficial effect on the fire resistance of HSC columns. The results presented will generate data on the fire resistance of HSC columns and contribute to identifying the factors that influence the behaviour of HSC columns.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number45141
NPARC number20386433
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Record identifierd261de3e-f391-4b73-a531-6ac9636cf149
Record created2012-07-25
Record modified2016-05-09
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