Supports and Loads for Calculation with Warping Torsion
At which point on a cross-section are the supports and loads assumed for the calculation with warping torsion?
Answer
Both support forces and loads are assumed for the calculation with warping torsion in the centroid. Accordingly, an asymmetric cross-section would automatically receive torsion, see the image.
Keywords
Answer
Both support forces and loads are assumed for the calculation with warping torsion in the centroid. Accordingly, an asymmetric cross-section would automatically receive torsion, see the image.
Support Loading Warping torsion Shear center Centroid Torsion
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Lateral-Torsional Buckling Analysis with New Torsional Warping (7 DOF) Add-on for RFEM 6 / RSTAB 9
This technical article presents some basics for using the Torsional Warping add-on (7 DOF). It is fully integrated into the main program and allows you to consider the cross-section warping when calculating member elements. In combination with the Stability Analysis and Steel Design add-ons, it is possible to perform the lateral-torsional buckling design with internal forces according to the second-order analysis, taking imperfections into account.
New
- The design of the connection components is performed according to Eurocode EN 1993-1-8
- After activating the Add-on, the design situations for Steel Connections must be activated in the "Load cases and Combinations" dialog box
- For the design of the connection stability (Buckling), it is necessary to have the Add-on Structure Stability activated
- The calculation can be started via the table or via the icon in the top bar
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How do I set a release for warping?
- How can I define a warping spring or a warping restraint?
- How can I deactivate the 7th degree of freedom for certain members or cross-sections only?
- How can I display the cross-section warping?
- The limit stress is activated, but my stress ratio is “non-designable” in the Stress-Strain Analysis add-on. What could be the reason?
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How do I define effective lengths when designing steel members in RFEM 6?
- How do I define a member as a cantilever and not as supported at both ends for serviceability or deflection design?
- I would like to model a frame beam with a tapered cross-section. For this, I have created a member with the cross-section distribution "Tapered at member start". However, the resulting cross-section is displayed incorrectly in the rendering. What is the problem here?
- How do I define a member as a cantilever and not as supported at both ends for serviceability or deflection design?
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- How can I define a warping spring or a warping restraint?
