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How to do a steel verification

To assess a structure (whether it is sufficiant or not), the following steps must be followed in sequence:

  • Schematising the construction
  • Determining the internal forces and moments (= global analysis)
  • Checking the cross-sections (= design):
    • Strength
    • Stability 
    • Stiffness

The explanation below covers the design of steel.

In Diamonds

  • Calculate the internal forces (syn. global analysis) F9 or.
  • Set the buckling lengths.
    Don’t skip this step! Without the correct buckling lengths the stability results have no meaning.
  • Select the correct steel standard with Analysis > Steel standard.
  • Click on F3 or to start the verification.
    More information on the checks in the pdf below.
  • View the results with . For the results of the strength check click , for those of the stability check click .
    The results of the strength and stability check are displayed as a percentage of the total capacity (= 100%) of the section.

    • A structure is sufficient for strength, if the percentage is less than 100% for all bars.
    • A structure is sufficient for stability, if the percentage is less than 100% for all bars.

    Based on the percentage no judgment can be made on the extent to which a section is sufficient or not. This is because the used formulas are not always linear.

  • Don’t forget to verify the stiffness, thus the deformation.
    A structure is sufficient if the strength, stability and stiffness are sufficient.

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