TY - GEN
T1 - Fatigue behaviour of RC beams retrofitted in shear with externally bonded CFRP sheets
AU - El-Saikaly, Georges
AU - Chaallal, Omar
AU - Godat, Ahmed
PY - 2014
Y1 - 2014
N2 - Few studies have been conducted on RC beams strengthened with EB-FRP and subjected to fatigue loading, particularly in shear. The objective of this research was to examine experimentally the fatigue performance of RC beams retrofitted in shear using EB-CFRP sheets, that is with no increase in service load. Six tests were performed on full-size RC T-beams with three different steel stirrup spacing. The specimens were subjected to fatigue loading up to 6 million cycles, at a frequency of 3Hz. The applied stress ranged from 35% to 65% of ultimate monotonic strength of control beams. The test results confirmed the feasibility of using EB-CFRP shear-strengthening technique in extending the fatigue life of RC beams. They also demonstrated the existence of an interaction between transverse shear reinforcement and EB-FRP.
AB - Few studies have been conducted on RC beams strengthened with EB-FRP and subjected to fatigue loading, particularly in shear. The objective of this research was to examine experimentally the fatigue performance of RC beams retrofitted in shear using EB-CFRP sheets, that is with no increase in service load. Six tests were performed on full-size RC T-beams with three different steel stirrup spacing. The specimens were subjected to fatigue loading up to 6 million cycles, at a frequency of 3Hz. The applied stress ranged from 35% to 65% of ultimate monotonic strength of control beams. The test results confirmed the feasibility of using EB-CFRP shear-strengthening technique in extending the fatigue life of RC beams. They also demonstrated the existence of an interaction between transverse shear reinforcement and EB-FRP.
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M3 - Conference contribution
AN - SCOPUS:85067767028
T3 - Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
BT - Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
A2 - El-Hacha, Raafat
PB - International Institute for FRP in Construction (IIFC)
T2 - 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
Y2 - 20 August 2014 through 22 August 2014
ER -