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2021-03-15

Options for Calculating Reduction Factors

In PLATE‑BUCKLING 8, two options in the detail settings can be used to calculate the reduction factors of plate buckling.

The "Different buckling curves" option (Image 01) uses different buckling curves for the existing stresses:

  • for stresses in the x-direction, the equations according to Ch. 4.4 (2) of EN 1993‑1‑5,
  • for stresses in the z-direction, the formula according to Annex B.1,
  • for shear stresses, see Table 5.1.

If the "General buckling curve" option is used (Image 02), the reduction factors are generally calculated according to the formula in Annex B.1. This option is usually on the safe side, but you can achieve more economical results by using the "Various buckling curves" option.


Author

Ms. von Bloh provides technical support for our customers and is responsible for the development of the SHAPE‑THIN program as well as steel and aluminum structures.

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