Torsion design - loading (Beams: AISC 360)
For design of open sections (i.e. rolled I sections in the current release) torsion design is carried out for “applied torsion loading” only and in accordance with those cases in Appendix B of DG9 with torsion fixed and warping free member ends (i.e. cases 3, 4 and 5 of DG9, with some extension for partial UDL and VDL).
Applied torsion loading
Tekla Structural Designer defines “applied torsion loading” as:
- A force that is manually applied by the User using the Member Loading in the
Load ribbon, (as shown below)
- Or a force that is induced from a moment connection between primary and
secondary beams, or a cantilever beam (as shown below, with bending and torsion
moment diagrams).
