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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 102
PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
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Paper 178

Influence of Taper End FRP on Retrofitted Beam Behaviour

Y.T. Obaidat

Department of Civil Engineering
Faculty of Hijjawi for Engineering Technology
Yarmouk University, Irbid, Jordan

Full Bibliographic Reference for this paper
Y.T. Obaidat, "Influence of Taper End FRP on Retrofitted Beam Behaviour", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 178, 2013. doi:10.4203/ccp.102.178
Keywords: carbon fibre reinforced polymer, taper, debonding, finite element model.

Summary
The use of fibre reinforced polymer (FRP) as structural reinforcement is gaining more and more interest in construction practice. This research was conducted to investigate the behaviour of rectangular reinforced concrete beams retrofitted by carbon fibre reinforced polymer (CFRP) at the bottom of these beams. The numerical model considering material nonlinearities which was developed and verified against experimental works in Obaidat et al. was used in this study. This model showed good agreement between the finite element model results and the experimental results. The influences of taper end CFRP length were investigated by numerical analyses. The effect of the number of layers keeping the total thickness constant is studied; namely, a beam with two CFRP plates and a beam with three plates and having a total thickness of 1.2 mm. The results of the parametric study indicate that for taper end CFRP there is a threshold for the contribution of the CFRP plates. The effect of the number of layers keeping the total thickness constant has no influence on the load capacity of the strengthened beam using CFRP.

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