STUDY ON TORSIONAL BEHAVIOR OF RC T- BEAMS STRENGTHENED WITH GLASS FRP

Abstract

There are a number of factors that need the repair or rehabilitation of existing structures, such as
increased loads, deterioration due to age or faulty building materials and craftsmanship, or possibly
seismic retrofitting. T-beams are comparable to rectangular beams in terms of torsion analysis and
design, except that the influence of concrete on the flange is not taken into account. The flange
widths of controlled beams were adjusted in order to examine the effect of flange width on torsion
resistance. Two more variables being investigated are the orientation of the fibers and the
configurations of the strengthening. In trials, GFRP-strengthened beams are compared to control
beams that have not been strengthened. According to the study, the torsional behavior of all the
GFRP-enhanced T-beams examined was significantly improved. In a test, reinforced GFRP
reinforcement shafts are put up against unfortified controls. According to the study, the GFRP
reinforcements of the T-bars appear to have undergone a drastic change in tensional behavior or
have fallen. In this study, we also take a closer look at fiber arrangements and orientation