Lateral Unsupported Wide Flange Beam

This form allows you to input design information about a wide flange steel beam and calculate which sections are acceptable. Calculations are performed using the equations in the Canadian Standards Association standard CSA S16-14 Design of Steel Structures. Clauses 11, 13.5 and 13.6 are applied in the calculations.

Fy (MPa) :
ω2 :
Mf (kN m) :
L (mm) :

  • Fy is the yield strength of the steel section in MPa. Fy must be between 100 and 1000.
  • ω2 is the bending moment gradient factor defined in clause 13.6(a). ω2 must be between 1.0 and 2.5.
  • Mf is the factored applied moment in kN m. Mf must be greater than 1.
  • L is the length of the unbraced compression flange, not the beam span. L must be greater than 1.

Although no effort has been spared in an attempt to ensure that numerical values are accurate to a degree consistent with current structural design practice, the author and owner of this site do not assume responsibility for errors or oversights resulting from use of the information contained herein. Anyone making use of this site assumes all liability arising from such uses.

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