RF-CONCRETE Surfaces Version 5

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RF-CONCRETE Surfaces Version 5

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Ultimate Limit State

Figure 3.6 Window 1.1 General Data, Ultimate Limit State tab
Existing Load Cases / Combinations

This column lists all load cases, load combinations, and result combinations that have been defined in RFEM.

Click  to transfer selected entries to the Selected for Design list on the right. You can also double-click the items to transfer them. To transfer the complete list to the right, click .

Selecting several load cases is possible by clicking them one by one while pressing the [Ctrl] key. This allows you to transfer several load cases at once.

If a load case is marked red, like LC3 in Figure 3.6, it cannot be calculated: It indicates a load case without load data or a load case containing imperfections. When you transfer it, a corresponding warning appears.

Below the list, several filter options are available. They help you to assign the entries sorted by load case, load combination, or action category. The buttons have the following functions:

Table 3.1 Buttons in Ultimate Limit State tab

Selects all load cases in the list

Inverts the selection of load cases

Selected for Design

The column on the right lists the load cases, load and result combinations that have been selected for the design. To remove selected items from the list, click or double-click the entries. To empty the entire list, click .

You can assign the load cases, load and result combinations to the following design situations:

  • Persistent and Transient
  • Accidental

This classification controls the partial safety factors γc and γs according to EN 1992-1-1, Table 2.1 (see Figure 3.4 and Figure 3.44).

You can change the design situation by using the drop-down list. To open the list, click .

Figure 3.7 Assigning the design situation

For a multiple selection, press the [Ctrl] key and click the corresponding entries. Thus, you can change several items at once.

The analysis of an enveloping max/min result combination is faster than the analysis of all load cases and load combinations indiscriminately selected for design. However, in the analysis of a result combination, it is difficult to discern the influence the included actions have (see also chapter 4.1).