The post-tensioned steel anchorage and a reinforced concrete structure employing the stress generated in the fixing portion of the steel material to be effectively dispersed is disclosed.
Post-tensioned steel anchorage disclosed has a hollow to be steel passes, the body being provided with a tapered shape; along the outer circumferential direction of the body to one end of the body to form a plane perpendicular to the longitudinal direction of the body the fixing rib provided with a plurality of longitudinally to the other end of said body at intervals along the outer circumferential direction of the body to form a plane perpendicular to the longitudinal direction of the body; comprising a fixing plate; And the outer side edge so as to be disposed inside the fixing plate circumference having a projection height from the body, is provided between the plurality of fixing ribs to the opposite ends in the outer circumferential surface of the body supporting the fixing plate and the fixing rib, respectively, the outer edge at least one reinforcement accommodated are grooves formed at the corner can accommodate rebar on the size rectangle of which the reinforcement is formed horizontally in the longitudinal direction of the body, it received in the reinforcement receiving groove corresponding to the cross section of the steel anchorage such that the rebar receiving groove disposed at a position intersecting with each other so as to form a plurality of reinforcing ribs provided on the four corners of the body; includes the reinforced receiving groove, the outer edge of the reinforcing rib, the receiving to receive reinforcement to a size corresponding to the thickness of the reinforcing bar is cut on the outside edge of the reinforcing rib.
Further, a reinforced concrete structure is adopted post-tensioned steel anchorage is disclosed for applying a post tension to the steel structure; Sheath tube in which the steel material is inserted therein; The steel material is coupled to the end of the sheath tube anchorage; Reinforcement member is fastened to the reinforced receiving groove formed in the reinforcing ribs of the steel anchorage; The reinforcement member, the cast-in-place concrete surrounding the body and the sheath tube of the steel anchorage; It includes; and is attached to the outer surface of the steel anchorage anchor head for fixing the substrate.