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.

本研究涵盖了 CFRP 包裹对预损坏钢筋混凝土 (RC) 柱的影响。共10根钢筋混凝土柱由普通强度混凝土制成，其中8根用CFRP加固，所有这些试件都在偏心载荷下进行了两种偏心比（e/h=0.5和e/h=0.8）的试验。本研究中的主要参数包括加固方案、预损坏条件和偏心比。分析了破坏模式、施加的载荷-位移曲线、延展性指数和刚度。结果表明，试样的极限承载能力和延展性通过使用CFRP包裹试样而得到改善和增加。此外，还提出了最佳强化方案。