Authors : Ahmed Salim Edan, Qassim A. Al Quraishy and Mohammed M. Salman
Abstract: In this research, RC cantilever beams with the application of CFRP sheets are designed and modelled to be loaded till failure. The modeling can be divided into two types, the first type is experimental modeling by casting nine specimens divided into three groups based on their length, using high strength concrete and adding CFRP sheets. The second type can be considered as a finite element modeling by ANSYS program. The results from the experimental research of the nine specimens show detailed conclusions that can be presented for beams strengthened with CFRP sheets the yielding loads ranged among 113, 111 and 106% of the yielding load of the control beam of 1.1, 1.6 and 2.1 mL, respectively. As loads increase to ultimate loads were concerned the increasing of the ultimate strength ranged among 87.7, 83.15 and 80% when compared to that of the control beams. In case of increasing the compressive strength of concrete to (60 MPa) the increased the yielding and the maximum loads by 14.5, 12.5 and 9.6 as compared by the control beams of length 1.1, 1.6 and 2.1 m, respectively. And the ultimate percentages ranged among 35, 34.5 and 31%. The percentage of differences between the experimental results and ANSYS results are relatively close and ranged by 0.8-9.2% and was considered as reliable therefore the strain values on the extreme fiber of cantilever beam was taken into account and the full image of mind about the behavior of the cantilever beam and what is the limit of length was permitted to get stand with any increasing of loads.
Ahmed Salim Edan, Qassim A. Al Quraishy and Mohammed M. Salman, 2018. Nonlinear Flexural Behavior of Reinforced Concrete Cantilever Beam Strengthened by Sika Wrap CFRP. Journal of Engineering and Applied Sciences, 13: 10936-10946.