Rehabilitation of eccentrically loaded reinforced concrete columns using CFRP Products

Abstract

This study covered the impact of CFRP wrap on pre-damaged reinforced concrete (RC) columns. A total of Ten reinforced concrete columns were made of normal strength concrete, and eight of them were strengthened with CFRP, and all these specimens tested under eccentric loading with two ratios of eccentricity (e/h=0.5 and e/h=0.8). The main parameters in this study included strengthening scheme, pre damaged condition, and the ratio of eccentricity. The failure modes, applied load-displacement curves, ductility index, and the stiffness were analysed. The results showed that the ultimate load capacity and ductility of specimens were improved and increased by using CFRP wrap around the specimens. In addition, the best strengthening scheme has been suggested.