The purpose of this study was to investigate the effectiveness of different strengthening schemes in strengthening heat damaged reinforced concrete short columns. A series of 63 heat damaged specimens were tested under concentric compression after jacketing externally with High Strength Fiber Reinforced Concrete (HSFRC), Ferrocement (FC) and Glass Fiber Reinforced Polymer (GFRP) jackets. The specimens were subjected to various heating and cooling regimes. The overall response of strengthened specimens was investigated with reference to un-strengthened specimens in terms of axial compressive strength, ductility, lateral stress-strain, and axial stress-strain behaviour. It was observed that while the GFRP jacketing is quite effective in improving compressive strength and energy dissipation, it is not capable of improving stiffness. On the contrary FC and HSFRC jacketing were mainly effective in improving stiffness property. Overall GFRP jacketing was found to be the most effective method of strengthening fire or heat damaged concrete columns.
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1 December 2014
Research Article|
December 01 2014
Strengthening of Heat Damaged Reinforced Concrete Short Columns Available to Purchase
A. Roy;
A. Roy
1
Department of Civil Engineering, IIT Roorkee, India
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U. Sharma;
U. Sharma
1
Department of Civil Engineering, IIT Roorkee, India
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P. Bhargava
P. Bhargava
1
Department of Civil Engineering, IIT Roorkee, India
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Publisher: Emerald Publishing
Online ISSN: 2040-2325
Print ISSN: 2040-2317
Journal of Structural Fire Engineering (2014) 5 (4): 381–398.
Citation
Roy A, Sharma U, Bhargava P (2014), "Strengthening of Heat Damaged Reinforced Concrete Short Columns". Journal of Structural Fire Engineering, Vol. 5 No. 4 pp. 381–398, doi: https://doi.org/10.1260/2040-2317.5.4.381
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