It is possible to model towers supported by guy cables using the ‘Multi-member’ tower module (offshore module).
Each guyed cable is modelled as an additional support structure member. This means that the ground anchor points need to be defined as additional nodes, and the cables themselves are defined as additional members connecting the tower attachment node with the ground anchor position.
In order to configure these members as guy cables, the following Project Info text is required:
MSTART EXTRA
NumBarElements 6
BarElements 27, 28, 29, 30, 31, 32
NumPreTensionEls 6
PreTensionEls 27, 28, 29, 30, 31, 32
PreTension 274680, 274680, 274680, 274680, 274680, 274680
MEND
The above example is just for illustration and would of course vary according to the model. It shows a definition for 6 cables, numbers as additional members 27 to 32, and all of which have pre-tension of 274680N. It would require the creation of six new nodes in the tower screen, all at ground level, as well as six new elements connecting the new nodes to existing tower nodes.