Retrofit of RC square short columns

It is found that short columns, even ones designed according to current codes, suffered brittle shear failures. It is demonstrated experimentally that it is possible to strengthen the shear resistance of short columns such that a flexural ductile failure occurs by developing plastic hinges at both ends of the column. Anchoring of the fibre wraps to the columns was found to be effective in increasing the shear resistance and energy dissipation capacities of the columns.