Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross section is round and sometimes square with rounded corners. Including light round steel bar, ribbed steel bar, torsion steel bar.
Reinforced concrete with steel bar refers to reinforced concrete reinforcement with straight bar or disc strip steel, its shape is divided into light round steel bar and deformation of steel bar two, delivery state for straight bar and disc round two.
Light round steel bar is actually the small round steel and disk of ordinary low carbon steel. Deformed steel bars are surface ribbed bars, usually with two longitudinal ribs and transverse ribs evenly distributed along the length direction. The appearance of transverse rib is helical, herringbone, crescent form 3 kinds. In millimeters of nominal diameter. The nominal diameter of deformed steel bar is equivalent to that of circular steel bar with equal cross section.
The nominal diameter of steel bar is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32, 40 mm. Steel: 20MnSi, 20MnV, 25MnSi, BS20MnSi. Reinforcement mainly undergoes tensile stress in concrete. Because of the action of rib, deformed steel bar and concrete have greater bonding ability, so it can bear the action of external force better. Steel bars are widely used in various building structures. Especially large, heavy, light thin-walled and high-rise building structures.
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