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Frequently Asked Questions (FAQ)
- Why do I get a design ratio for the stability analysis according to 184.108.40.206 in the STEEL EC3 add-on module? Why is a * added to Equation (6.36)?
- I design a frame with a taper (docked cross-section). STEEL EC3 classifies the taper in Cross-Section Class 3. Accordingly, the elastic resistances are taken into account, which is very unfavorable. According to the standard, the taper should be categorized in Class 1, and thus the plastic reserve should also be usable.
I design an eccentrically modeled wall beam in RF‑/STEEL Warping Torsion, which is loaded transversely with a distributed load. While the bending moments in the main program result in zero at the member start and member end due to the hinges, the RF‑/STEEL Warping Torsion add-on module displays moments at these locations, which incorrectly reduces the span moment.
How do I get the boundary moments equal to zero at this point?
- I cannot find any reason why no plastic design is performed for a class 1 cross-section. Normally, you have to select the check box for the elastic design.
- How can I design any SHAPE‑THIN cross-section in detail in RFEM or RSTAB?
- Is it possible to deactivate the stability analysis by member within a case in the RF‑/STEEL EC3 add-on module?
- I design a set of members using RF‑/STEEL EC3. In accordance with the manual calculation, the design is fulfilled, but it cannot be performed successfully in the add-on module. Why?
- What is the difference between the RF‑/STEEL and RF‑/STEEL EC3 add-on modules?
- When entering data in the RF‑/STEEL EC3 add-on module, I get the error message "Incorrect location of the intermediate lateral restraint". Why?
- How can I use springs for nodal supports in the design of sets of members in RF‑/STEEL EC3?