Effect of slenderness ratio of RC columns strength with CFRP in both directions under uniaxial moment

Abstract

The present study investigates the effect of slenderness ratio of circular reinforcement concrete (RC) columns strengthened with carbon fiber-reinforced polymer (CFRP) sheets. Twelve RC columns made of normal concrete were casted and tested, these specimens subjected to eccentric loading. The influence of three parameters that including the slenderness ratio, distribution, and direction of CFRP strips were studied. These results appear high improvement in the load capacity of columns for both stages of cracking load and ultimate load for all groups of columns.