Answer:
In the RF‑/STEEL add-on module, an equivalent stress analysis according to von Mises is carried out. An elastic stress analysis (EL-EL) is performed. In RF‑/STEEL EC3, a classification is done before the design. If the cross-section is classified as Class 1 or Class 2, a design for plastic limit internal forces is carried out. An EL‑PL design is performed. If you do not want to use the plastic load reserves, you can switch the design to EL‑EL in the details of the RF‑/STEEL EC3 add-on module. The results are then comparable to RF‑/STEEL.
