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Column Calculation

Steel column calculation according to NEN-EN 1993-1-1.

Column

Features

  • Buckling verification
  • Cross-section classification
  • Unity check output
  • Transparent formulas according to Eurocode 3

Input

Column input

FieldDescription
Profile nameHere you choose the profile
Column length LLength of the column
Buckling length about the y-axis Lcr,yBuckling length about the y-axis
Buckling length about the z-axis Lcr,zBuckling length about the z-axis
Unrestrained length LcrLargest unrestrained length with respect to lateral torsional buckling stability
Buckling modeNon-sway nodes / Sway nodes. Here you choose the type of frame the column is part of. This determines the equivalent moment distribution factors Cmy and Cmz according to NEN-EN 1993-1-1 Table B.3, Equivalent moment distribution factors Cm in tables B.1 and B.2

Forces and moments

Column forces

FieldDescription
NEdDesign value of the axial force
MyA,EdDesign value of the bending moment at the bottom of the column
MyB,EdDesign value of the bending moment at the top of the column
qz,EdDesign value of the (equivalent) transverse load on the column
zThe point of application of the transverse load qz,Ed, in mm in the z-direction relative to the reference line. The reference line is configurable: relative to top, to centroid, or to bottom. This distance is only relevant for the lateral torsional buckling check (the factor C2)

Enter the moments and the transverse load with the correct sign. These values are used for, among other things, the lateral torsional buckling calculation.