All design situations in the model are listed in this table of the design add-on. Here, you can decide whether and in what way a certain design situation should be taken into account for the timber design checks. Further information about the design situations can be found in Chapter Design Situations of the RFEM manual.
Selecting Combinations for Design
By default, the "To Design" check box is activated and all design situations are taken into account for the timber design. If you deactivate the check box for a design situation, it is deactivated for the timber design and no design checks are performed for this design situation. This selection is also synchronized with the selection of the design add-on in the design situation settings.
With the default setting, all combinations of a design situation activated for the design are taken into account. However, you can also enter individual combinations from this design situation in the "Combinations to Design for Enumeration Method" column. Use the
button to open a dialog box with the graphical selection options for the combinations to be calculated. The design checks are carried out for all combinations entered in this column.
Assigning Design Situation Types
The design situations were created on the basis of the selected standard for the load case classification. Therefore, it is still necessary to assign the types of the selected design standard, as they may differ from each other. In general, this assignment is carried out automatically, so a serviceability limit state combination from the load case combination is also assigned to the "serviceability" design type. However, you should check this selection and assign it correctly, if necessary.
The design checks performed in the add-on are based on a design situation type. For example, if there is no design situation with the serviceability limit state, no serviceability limit state design is performed. With a design situation of the ultimate limit state type, only ultimate limit state design checks are performed. Different design situation types are possible, depending on the standard.
You can also activate several design situations of the same type for the design, such as two design situations for the ultimate limit state design checks. The ultimate limit state design is then performed for the selected combinations of both design situations.