How to Deactivate Automatic Switching in Design Details
Switching automatically to the general method according to 6.3.4 is activated by default in the design details. When the equivalent member method is selected for a member or a set of members, the program first checks if the application conditions have been met. If this is not the case, the general method is used instead.
Please note that the general method cannot be used to analyze stability designs in the main load-bearing plane. As a result, the entered buckling length for flexural buckling around the major axis will no longer be considered in the design. Thus, you must check if this design would govern or if the required imperfections were applied when determining the internal forces and moments.
Instead of switching automatically, some users prefer to receive a warning that the member cannot be designed using the equivalent member method. To do this, you can deactivate the option for the automatic switch in the design details; trying to perform the design using the equivalent member method will result in an error message instead.
Manual Selection of Design Method for Sets of Members
Designing members manually according to the general method is possible, for example, by defining these members as a set of members. For all sets of members of a design case, you can select the design method in the design details. A design using the RF-/STEEL Warping Torsion module extension is only available for sets of members.
Alternatively, you can activate the general method in the settings of the National Annex for all members of the design case.
