AOS Equation Calculator
Calculate the required area of steel reinforcement for concrete beams based on applied moment and material properties
AOS Equation Formula
As = M / (0.87 × fy × z)
Where z is the lever arm calculated from beam geometry and material properties
Calculation Results
As
Required Steel Area
-
z
Lever Arm
-
ρ
Reinforcement Ratio
-
K
Moment Factor
-
Reinforcement Recommendation
Enter values to calculate
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