Mohammad Kabir - Associate Professor, Department of Civil Engineering, Amirkabir University of Technology
Hamid Yadollahi Omran - M. Sc. Student in Structural Division, Department of Civil Engineering, Amirkabir University of Technology

This paper presents the numerical and analytical modeling of reinforced concrete (RC) beams strengthened in flexure with near-surface mounted (NSM) carbon fiber reinforced polymer (CFRP) strips. The stages of the NSM technique, comparison between NSM and externally bonded (EB) method are studied. An analytical investigation is performed for determining of load-deflection curve. The numerical modeling is carried out in ANSYS software. The crack propagation, interfacial normal and shear stress at the cutoff point and cracked regions are investigated. The modeled beams are strengthened by one, two and three grooves. The results, load-deflection curve, are compared to reported results in literature.

RC Beam, flexural strengthening, Near-surface mounted, CFRP strip, adhesive