Options for Calculating Reduction Factors
Technical Article
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
Sonja von Bloh, M.Sc.
Product Engineering & Customer Support
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.
Keywords
Reduction factor Buckling curve
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- Why do I get major differences for the design of a longitudinally stiffened buckling panel in comparison with the German and Austrian National Annexes?
- For a buckling analysis, PLATE‑BUCKLING determines the governing shear stress of τ = 7.45 kN/cm², while RF‑/STEEL gives the result of the maximum shear stress of τ = 8.20 kN/cm². Where does this difference come from?
- How is the rotational stiffness of a buckling stiffener determined in PLATE‑BUCKLING?
- When starting PLATE‑BUCKLING as a stand‑alone program or as an add‑on module within RFEM/RSTAB, the "from RFEM" or "from RSTAB" button is grayed out.
- In PLATE‑BUCKLING, the reduction factor due to column buckling χc is calculated using the modified slenderness of the sheet metal ${\overline{\mathrm\lambda}}_{\mathrm p}$. Why is it not calculated using the slenderness of the equivalent compression member ${\overline{\mathrm\lambda}}_{\mathrm c}$ ?
Associated Products
Add-on Module
Plate buckling analysis of rectangular plates with or without stiffeners
1,200.00 EUR
Stand-Alone Program
Plate buckling analysis of rectangular plates with or without stiffeners
1,200.00 EUR
Add-on Module
Plate buckling analysis of rectangular plates with or without stiffeners
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