Effects of Hybrid Fiber Reinforced High-Strength Concrete in Exterior Beam-Column Joint Specimens

This paper investigated the effects of hybrid fiber reinforced high-strength concrete in Exterior beam –column joint specimens. One specimen detailed as per IS 13920, second specimen detailed as per IS 456 code provisions, this two specimens were cast with high strength concrete of Grade M60 and treated as control specimens. Six specimens detailed as per IS 456 but the top & bottom bars of beam were bent-up within the joint core, and maintained the uniform spacing of stirrups for column and beam, those specimens were cast by using the steel fibers, polyolefin fibers were added into the same grade of concrete with various volume fractions. All the specimens were tested by cyclic load, from this test ultimate load, Load deflection behavior, deflection ductility, stiffness were studied and compared the results with control specimens. The hybrid fiber reinforced high strength concrete specimens were gave better performances.