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Glass fibre reinforced polymer (GFRP) rebars is a proven and successful alternative reinforcement that will give structures a longer service life as well as noncorrosive material properties. In this, present study an experimental study on columns with hybrid fibre and GFRP rebars was performed. Their performance was evaluated by comparison with a conventional steel reinforced column. Six hybrid columns with fibre and GFRP rebar and three conventional concrete steel reinforcement columns were casted and tested under different eccentric (0,0) (0,25) (0,50) loadings. The fibres used were steel and glass fibres which improves the concrete strength property. Tests were done to check the load carrying capacity of columns for both axial and eccentric loads, deflection, and buckling nature of column. The GFRP rebars were able to withstand the peak concentric and eccentric loads without crushing and local buckling. Also after load removal, deflected GFRP column regained its original position and crack width also reduced. In steel reinforced column, steel rebar were yielded column and after load removal, no deflection regain and crack width reduction were found. The performance of HYFC rebar was 18% greater while considering to that of conventional concrete column. Keywords— Elastic instability; GFRP; Hybrid fiber; load carrying capacity

Enhancing the Structural Performance of Column using GFRP Rebar and Hybrid Fiber