• Nagesh Singh Baghel
• Akhand Pratap Singh

"Over the last decade, advances in strengthening structures through external bonding of advanced fiber-reinforced polymer (FRP) composites have gained significant popularity worldwide." This technology is a more cost-effective and technically superior alternative to traditional procedures, delivering improved strength, great fatigue resistance, low weight, corrosion resistance, easy and speedy installation, and little structural geometry changes. Despite the widespread use of in-situ reinforced concrete (RC) continuous beams in construction, there has been little research into FRP strengthening of continuous beams. This paper describes an experimental research of the behaviour of continuous RC beams under static loading conditions. Externally bonded glass fiber-reinforced polymer (GFRP) sheets and unbonded GFRP with a steel bolt system are used to reinforce the beams, with various strengthening schemes. Six continuous (two-span) beams with diameters of (1502502300) mm, all with similar longitudinal and transverse steel reinforcing, comprise the experimental setup. One beam is used as the control specimen and receives no strengthening, while the others are strengthened in various patterns with externally bonded GFRP sheets and unbonded GFRP employing end anchorage with the steel bolt system. The research looks into the reactions of RC continuous beams, with an emphasis on failure modes, load capacity enhancement, and load deflection analysis. The results show that connecting GFRP sheets to the shear face significantly increases the shear strength of RC beams. Furthermore, using unbonded GFRP sheets with end anchorage improves cracking behaviour by delaying the emergence of visible cracks and reducing crack widths at higher load levels.

Continuous beam; reinforcement; GFRP; debonding failure; end anchorage.

"ENHANCING THE STRUCTURAL PERFORMANCE OF RC CONTINUOUS BEAMS USING GLASS FIBRE REINFORCED POLYMER (GFRP) STRENGTHENING TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 7, page no.h313-h328, July-2023, Available :http://www.jetir.org/papers/JETIR2307738.pdf

"ENHANCING THE STRUCTURAL PERFORMANCE OF RC CONTINUOUS BEAMS USING GLASS FIBRE REINFORCED POLYMER (GFRP) STRENGTHENING TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 7, page no. pph313-h328, July-2023, Available at : http://www.jetir.org/papers/JETIR2307738.pdf