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FAQ 004848 | 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.<div>How do I get the boundary moments equal to zero at this point?</div>
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Question
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?
Answer
Since the RF‑/STEEL EC3 or RF‑/STEEL Warping Torsion add-on module has its own solver, the eccentricities must also be considered here.
Therefore, it is recommended to adjust the support eccentricities within the add-on module, see Image 01.
Image 01 - Adjusting Eccentricity in Add-on Module
Thus, the span moment becomes maximum and the boundary moments zero, see Image 02.
Keywords
Dlubal FAQ horizontal beam Wall beam Eccentric Bending moment Moment Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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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? - When entering data in the RF‑/STEEL EC3 add-on module, I get the error message "Incorrect location of the intermediate lateral restraint". Why?
- To which axes refer the support rotations and support eccentricities in RF‑/STEEL EC3 Warping Torsion?
- What does the load application point in RF-/STEEL EC3 Warping Torsion refer to?
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What are the options in RFEM or RSTAB for determining the ideal elastic critical moment for any cross-sections and systems/loads?
Is it also possible to design flat steel (brackets, flat steel stringers of staircases)?
- Why do I get large differences for the design of a longitudinally stiffened buckling panel in comparison with the German and Austrian National Annex?
- How are the signs for the release results of a line release and line hinges interpreted?
- How can I create a curved or arched section?
- How can I perform the stability analysis in RF‑/STEEL EC3 for a flat bar supported on edges, such as 100/5? Although the cross-section is rotated by 90° in RFEM/RSTAB, it is displayed as lying flat in RF‑/STEEL EC3.
- How is the rotational stiffness of a buckling stiffener determined in PLATE‑BUCKLING?
