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Citation |
Tao Z, Yu Q. Fire Safety J. 2012; 53: 19-27. |
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Copyright |
(Copyright © 2012, Elsevier Publishing) |
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DOI |
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PMID |
unavailable |
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Abstract |
Steel reinforced concrete columns have been widely used in many countries. The effect of fire exposure on the residual bond strength between the encased steel section and concrete is investigated in this paper. A total of 11 specimens, including 3 unheated specimens and 8 specimens which had been exposed to ISO 834 standard fire for 90 min or 180 min, were tested to investigate the influence of the following parameters: (a) fire exposure time, (b) thickness of concrete cover, (c) concrete strength, and (d) tie arrangement. A comparison is made between the measured bond stress-slip curves and predictions of an existing model. |