Finite Element Analysis of Flexural Strengthening of Reinforced Concrete Beams Using Near-Surface Mounted CFRP Rebars

Most of the standing structures today have already deteriorated or are on verge deterioration due to an increase in their age and harsh environmental conditions. For this very reason, need being upgraded replaced. Retrofitting using near-surface mounted (NSM) fiber-reinforced polymer (FRP) rods has now emerged as a promising technique for strengthening reinforced concrete members by increasing flexural strength. This study aims numerically investigate efficiency NSM RC beams finite element (FE) software, ABAQUS, also evaluate impact variables such strength, embedded length FRP rods, filler material used number provided. Validation model was confirmed first making comparison with experimental presented literature un-strengthened beam. Thereafter, validated simulate strengthened technique. The numerical results cracking moment, steel yielding ultimate bending deflection at failure were reported evaluated. FE analysis indicated that capacity significantly increased compared control beam, while mid-span deflections decreased