Reinforcement Calculator

Select Reinforcement > Reinforcement Calculator to open the Reinforcement Calculator.

Bar diameters and reinforcement areas are given in the units chosen in Preferences. The Calculator determines the following values (d denotes the reinforcing bar diameter):

• reinforcement area

  (for example:

  7*d 12 = 7.92 cm2

  7*d 12 + 5* d 16 = 17.97 cm2

  7*d 12 + 5*d 16 + 8*d 10 = 24.25 cm2

  ... ).

• The required number of reinforcing bars (for example: 44/d14 = 29 bars).
• The required number of reinforcing bars of a predetermined diameter. An additional condition is the number of bars with both diameters is approximately equal (for example: 44 /d 18 /d 12 = 12*d 18.0 + 12*d 12.0).
• The required number of reinforcing bars of a given diameter, where the diameter of 12 mm makes up a predetermined percentage of all bars (for example: 44 /d 18 /d 12 %25 = 16 * d 18.0 + 5 * d 12.0).
• The difference between the given area and the sum of the given reinforcing bar areas (for example: 44 - 5* d 12 = 38.35 cm2).