Shear Capacity of RC Beams Retrofitted

The aim of the study was to analyze the effect of retrofit on shear capacity; cracks; and failure modes of beams. Four concrete beams reinforced internally with steel and externally with both wire mesh (Ø4,06mm) and SCC (2.5mm) applied to the specimens were tested under three-point bending. The shear failure is initiated by a major diagonal crack within the beam shear span. This diagonal crack extended horizontally at the level of the wire mesh. Results show that SCC with wire mesh is very effective for shear strengthening. Increases in strength of 71.82% for BWS over the BN as control, un-retrofitted beams were noted