EXPERIMENTAL INVESTIGATION ON BEHAVIOR OF CONCRETE STRENGTHENED WITH GFRP WRAPPING

Abstract

Nowadays, repair, rehabilitation, and strengthening of surviving structures play a significant part in the construction industry. Numerous old structures are to be retrofitted to bear higher loads. A promising and innovative retrofitting system for concrete structures requires the use of externally bonded Fiber Reinforced Polymer (FRP) composites. Furthermore, the increasing number of development activities need to strengthen the existing buildings to enable them to take additional loads. In this paper, an effort has been made to examine the effect of GFRP flexible wrapping on Beams to enhance the load carrying potential of beams and to assess the behavioral improvement of GFRP composites on beams. This paper exhibits the results of experimental investigations on concrete beam restricted with high-strength Glass Fiber Reinforced Polymer (GFRP) composites. The various parameter fiber orientations were considered. Various wrap fiber orientation of 0o, 90o, ± 45o and mixtures of them were examined. The results confirmed a notable improvement in the compressive strength and stiffness of the GFRP-wrapped concrete beams