Kaiss F. Sarsam; Amer F. Izzet
Abstract
This paper presents results of an experimental investigation involving eight tests on 1800mm long reinforced concrete (RC) beams strengthened in shear with externally bolted carbon ...
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This paper presents results of an experimental investigation involving eight tests on 1800mm long reinforced concrete (RC) beams strengthened in shear with externally bolted carbon fiber reinforced polymer (CFRP) composites. The overall objective of this study was to investigate the shear performance and failure modes of RC beams strengthened with externally fixed carbon FRP (CFRP) manufactured U-warp strips and the specific goal was to keep the CFRP strips working till the beam reaches its flexural failure because in most of the previous researches the CFRPs debonded from the concrete surface and the failure (separation) happened in the concrete. The variables investigated within this program included: CFRP spacing and number of CFRP layers. The experimental results indicated that the contribution of externally fixed CFRP strips to the shear capacity is significant and depends on the variables investigated. In all the beam specimens (with end anchorage) the debonding was not observed.
