In the default setting, the cross-section class for each member and load case is determined automatically in the design modules. In the input window of the cross sections, however, the user can also specify the cross-section class manually; for example, if local buckling is excluded by the design.
The following technical article describes the creation of a user-defined platform for use on a four-sided tower in the RF-/TOWER add-on modules. First, start with an empty model of the 3D type and define four nodes. The numbering and position of these nodes are very important here.
As of program version X.06.1103, you can perform serviceability limit state design checks of antennas in RF‑/TOWER Design. You can activate this function under [Details] → "Serviceability". Then, the limit values can be adjusted in Window 1.10.2, Serviceability of Antennas.