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How to interpret the reinforcement of a beam or column

General

  • Ay – Representation of the longitudinal reinforcement parallel to the local axis y’. Therefore, in most cases, this is the lower and upper reinforcement.
  • Az – Representation of the longitudinal reinforcement parallel to the local axis z’. Therefore, in most cases, the lateral reinforcement.
  • Awz – Representation of the transversal reinforcement parallel to the local axis z’. Therefore, in most cases, the cross-section of vertical bracket slots of stirrups per length unit ofthe beam.
  • Awy – Representation of the transversal reinforcement parallel to the local axis y’. Therefore, in most cases, the cross-section of horizontal bracket slots of stirrups per length unit
    of the beam.
Important

  • Ay doens’t count for Az and visa versa. You should always determine the practical reinforcement based on Ay + Az .
    For example: if Diamonds finds for Ay =500mm²/m and for Az =250mm²/m, the total amount of 750mm²/m  should be placed!
  • If you rotate the local coordinate system x’y’z’, the direction of the reinforcement will change too!

Circular column

For a circular column, the reinforcement zones are similar: the column is split into 4 quarters.

  • Ay
  • Az
  • Awz
  • Awy 

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