New Anchorage Technique for GFRP Flexural Strengthening of Concrete Beams Using Bolts-End Anchoring System

Abstract The concept of external glass FRP composite confinement is a current process for strengthening concrete beams subjected to static loads. End anchorage composites 80 mm width and 90–130 length with different thicknesses (2.4 4.8 mm) have been fixed at the bottom bolts various diameters (6 10 mm). For this purpose, behavior strengthened bolt-end anchoring fiber polymer (BEGFPC) has analyzed. It concluded that load capacity BEGFPC improved by increasing end-anchorage thickness (about 98–188%). In addition, system 6 diameter significantly flexibility beams. contrast, in give high ultimate load, whatever their quantity. Therefore, combining would be best solution ductility retrofitted Depending on number bolts' arrangement, there also an enhancement crack patterns changing from intermediate flexural failure shear