Concrete Beams - ISS Engineering

Section Properties

Width b (mm)

Total Depth h (mm)

Cover c (mm)

Bar Ø (mm)

No. of Bars

Stirrup Ø (mm)

Material Properties

f'c (MPa)

fy (MPa)

Applied Loads

Mu (kN·m)

Vu (kN)

Section Drawing

Capacity Results

φMn

—

kN·m

—

φVn

—

ρ actual

—

Stress Block a

—

Depth

As provided

—

mm²

—

εt (strain)

—

×10⁻³

—

Step-by-Step Calculations

ACI 318 Flexure — φMn ≥ Mu

Enter values to see calculation steps

⚠ Design Note ACI 318 requires tension-controlled sections (εt ≥ 0.005) for φ = 0.90. Minimum steel ρmin = max(0.25√f'c/fy, 1.4/fy). Maximum steel ρmax ≈ 0.75ρbal.