Issue 52

H. EL-Emam et al., Frattura ed Integrità Strutturale, 52 (2020) 197-210; DOI: 10.3221/IGF-ESIS.52.16

failure of under reinforced concrete beams was observed in the case of beam B 0.55-B ,where the crack started at the critical section (end of the GFRP rod), which is near the constant moment region and then transferred to the strengthened section. Also, with increasing of bottom steel reinforcement ratio Group C , follows the same mode of failure of beams as in Group B

Figure 6: Load – Deflection Curve during effect of increase ratio steel

Figure 7: Strain distribution on GFRP bars during increase ratio steel reinforcement

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