http://www.iaeme.com/IJCIET/index.asp 37 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 11, Issue 8, August 2020, pp. 37-49, Article ID: IJCIET_11_08_004 Available online at http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=11&IType=8 Journal Impact Factor (2020): 11.3296 (Calculated by GISI) www.jifactor.com ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scope Database Indexed FLEXURAL BEHAVIOUR OF BEAMS WITH HYBRID CONFINEMENT Anusuya Senthilkumar Research Scholar, Department of Civil and Structural Engineering, Annamalai University, India. Dr. P.N. Raghunath Professor and Head, Department of Civil and Structural Engineering, Annamalai University, India. Dr. K. Suguna Professor, Department of Civil and Structural Engineering, Annamalai University, India. ABSTRACT This study represented the experimental results of FRP strengthened HSC beams with internal confinement. The first crack load, yield load, ultimate load, deflection at first crack load, deflection at yield load, deflection at ultimate load and ductility indices were the study parameters. The test beams of cross section 150x250 and 3000 mm in length were cast and tested. The beams were subjected to two-point loading and tested up to failure. Deflections, crack width, spacing of cracks and number of cracks were measured at all stages of loading. The results revealed that the ductility performance improved considerably through the introduction of internal confinement mechanism. Keywords: Ductility, GFRP, HSC, Internal confinement, Strength Cite this Article: Anusuya Senthilkumar, P.N. Raghunath and K. Suguna, Flexural Behaviour of Beams with Hybrid Confinement, International Journal of Civil Engineering and Technology, 11(8), 2020, pp. 37-49. http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=11&IType=8 1. INTRODUCTION Deformation capacity of concrete members is a demand of higher order in the context of present-day structural design. This assumes greater importance when structural members or systems are to be designed for seismic loading or any accidental impact. This requirement can be accomplished through several techniques. A promising technique is confinement. The desired degree of enhancement in ductility can be achieved through providing larger volume