composite column

Concrete-Filled Steel Tube (CFST) Calculator

Section Shape Circular Square Rectangular

Outer Diameter / Width B (mm)

Outer Height H (mm)

Wall Thickness t (mm)

Steel Yield Strength $f_y$ (MPa)

Concrete Compressive Strength $f_c'$ (MPa)

Column Length L (mm)

Effective Length Factor K

Steel Stress Ratio (Service)

Concrete Stress Ratio (Service)

Calculated Results

Click "Calculate Capacity" to display results.