The "equivalent linear combination", as used by RF‑/DYNAM Pro, is also considered by RF‑/STEEL. RF‑/STEEL calculates the governing internal forces. These are sometimes difficult to understand and not directly comparable with the result combinations themselves, for example when the equivalent stresses are used for calculating the governing internal forces, which is the default in RF‑/STEEL.
When you use the pure normal stresses or pure bending stresses for the calculation of governing internal forces in RF‑/STEEL, you can easily reproduce the resulting internal forces. You will see that the "equivalent linear combination" option is used by RF‑/STEEL.
The formulas and an example are provided in the image.
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