D1.A.10.5 Combined Forces and Torsion
The effects of combined actions of axial force with major and minor axis moments are accounted for the following:
Doubly and Singly symmetric members subject to flexure and compression - H1.1
Doubly and Singly symmetric members subject to flexure and tension - H1.2
Doubly symmetric rolled compact members subject to single axis flexure and compression – H1.3
If you prefer to use only cl. H1.1 even when cl. H1.3 is applicable, this may be done with the INT parameter.
Unsymmetrical and other members subject to Flexure and Axial Force - H2
This section is used to check single angles.
Members Subject to Torsion and combined Torsion, Flexure, Shear, and Axial Force - H3
The implementation will perform the AISC 360-16 code checks as per clauses H.3.1 and H.3.2 for circular & rectangular hollow shapes. For all other shapes listed above, the component will follow the design methods as per AISC Design Guide -9: Torsional Analysis of Structural Steel Members (DG-9).
For non-HSS members subject to torsion and combined stress, the program cannot detect the load-end restraint condition automatically from the model. You can specify this through TND parameter. Also, for some cases the distance where the torque is applied must be provided through the ALH parameter.