CFRP strengthening efficiency on enhancement punching shear resistance of RC bubbled slabs with openings

This paper focuses on investigating the influence of creating an opening in the vicinity of a column area on the punching shear resistance of reinforced concrete bubbled slabs and the effectiveness of their strengthening with (CFRP) sheets. The experimental program was intended to study the effect of dimensions, position, and distance of the opening relative to the column; the location of bubbles relative to the two-way critical shear section;...