Rebar refers to steel for reinforced concrete and prestressed reinforced concrete, and its cross section is round or sometimes square with rounded corners. Including round steel bar, ribbed steel bar, torsion steel bar.
Reinforced concrete steel bar refers to the straight bar or disk bar steel used for reinforced concrete reinforcement, its shape is divided into two kinds of round steel bar and deformed steel bar, the delivery state is straight bar and disk round two.
Round steel bar is actually ordinary mild steel small round steel and disk circle. Deformed bars are bars with ribbed surfaces, usually with 2 longitudinal ribs and transverse ribs evenly distributed along the length. The shape of the transverse rib is spiral shape, herringbone shape and crescent shape. Expressed in millimeters of nominal diameter. The nominal diameter of a deformed bar is equivalent to the nominal diameter of a circular bar of equal cross section. The nominal diameter of the steel bar is 8-50 mm, and the recommended diameter is 8, 12, 16, 20, 25, 32, 40 mm. Steel :20MnSi, 20MnV, 25MnSi, BS20MnSi. The steel bar is mainly subjected to tensile stress in concrete. Because of the action of the rib, the deformed steel bar has greater bonding ability with the concrete, so it can better withstand the action of external force. Steel reinforcement is widely used in various building structures. Especially large, heavy, light thin-walled and high-rise building structures.
