Steel bar suitable for concrete

Abstract

Then invention discloses a steel bar suitable for concrete. The steel bar comprises a steel bar body and a plurality of cross ribs, the cross ribs protrude out of the steel bar body, the largest size of the cross section of the steel bar body is d, the largest size of the cross ribs protruding out of the steel bar body is h, the width of the top portions of the cross ribs protruding out of the steel bar body is defined as rib top width b, and the distance between the two adjacent cross ribs in the length direction of the steel bar body is defined as rib interval L; the cross ribs are divided into two sets which are arranged on the two sides of the steel bar body correspondingly; a part, between the two sets of the cross ribs, of the cross section of the steel bar body is a smooth curve or / and a straight line; the largest size h of the cross ribs protruding out of the steel bar body is in a value range between 0.03d to 0.2d; and the rib interval L is in a value range between 0.3d to 0.8d. the steel bar suitable for the concrete has the beneficial effects that by improving the shape and the size parameters of the steel bar, the steel bar body has a smooth outline, the structure with cracked risks when the steel bar is combined with the concrete is eliminated, and accordingly the stability degree of reinforced concrete composed of steel bars is improved.

Description

technical field [0001] The invention relates to a steel bar, in particular to a steel bar suitable for concrete. Background technique [0002] Reinforced concrete is often referred to as reinforced concrete in engineering. It refers to a composite material that works together to improve the mechanical properties of concrete by adding steel mesh, steel plates or fibers to the concrete. [0003] The reason why reinforced concrete can work together is determined by its own material properties. First of all, steel bars and concrete have approximately the same linear expansion coefficient, and excessive stress will not be generated due to different environments. Secondly, there is a good bond between the steel bar and the concrete. Sometimes the surface of the steel bar is also processed into ribs with intervals (called deformed steel bar) to improve the mechanical engagement between the concrete and the steel bar. However, this is still not enough to transmit the steel bar and...

AI Technical Summary

Problems solved by technology

The steel bars currently used in the market cannot achieve higher strength due to unreasonable structures. When encountering disasters such as earthquakes and typhoons, they are prone to dangers such as fracture and collapse.

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