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How to understand the difference between the distributed steel bar and the structural steel bar in floor and roof slab
Aug 15, 2017

Distributed reinforcement is generally called the distribution bar, its main purpose is to bear the force of the internal forces to be evenly distributed, so that the main reinforcement force more evenly. Another function is to form a mesh with the main rib. such as unidirectional plate (two-way plate in the direction of the longitudinal and transverse two tendons are the force tendons) in the relatively small and the main ribs perpendicular to the tendons that is.

The structural rib is considered as a possible force, according to the specification does not need to be calculated, and according to the structural requirements of the configuration of steel bars. For example, a beam over 60 mm high does not need to be considered for torsion, still need to be equipped with waist tendons, according to the calculation of concrete can bear the shear force alone, according to the structural requirements of the stirrup (at the same time, the formation of reinforcing steel skeleton), plate of the crack-resistant tendons (generally at the angle of the oblique configuration) also belongs to the structural tendons. Sometimes the designer on the part of the force is not clear for safety reasons for the possible force without calculation and with some tendons, also should be counted as structural tendons, such as on both sides of the short version of the support is not calculated along the cantilever direction of reinforcement.

Whether it is the stress bar or the structural tendons generally conform to the design specifications.

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