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Detailing Of Reinforcement In Beam

Reinforcement plays an important role to withstand tensile stresses which occur because of bending and shear in beams toward singly reinforced sections. But if the depth of section is constrained because of various causes like architectural reasons as well as basement floors, the beam section is designed like doubly reinforced to withstand tensile and compressive stresses and are supplied with reinforcement in compression face.

When torsion occurs in Beams, they are equipped with supplementary longitudinal and shear reinforcement to withstand bending and shear stresses evolved because of torsion.

In reality, for singly reinforced beams, two supplementary bars are arranged in compression face of the beam with the purpose of connecting stirrups with bars. These additional reinforcements contain minimal diameter of 8mm or 10mm.

When the width of beam is not adequate for number of bars to be arranged, minimum clear distance bars should be maintained on the basis of maximum size of aggregate following the standard code guidelines, the reinforcement is arranged in layers in both tension and compression face of the beam. These reinforcement are supplied as straight bars in both zones.

A beam is defined as slab beam or Tee-beam, if it is designed with slab. Reinforcements are demonstrated with the following figure. Usually, the beam is designed as simple beam but supplementary reinforcement is provided on top with slab so that it can function like a Tee-beam.

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Detailing Of Reinforcement In Beam