If you have made all the entries in the Load Cases and Combinations dialog box, you can start the calculation directly there. The selected load combination is calculated with the button; With the button the calculation of all load cases and combinations starts.
You can also start the calculation of the current load combination with the button in the toolbar.
Clicking the button starts the calculation of all load cases and combinations (see chapter Start calculation des RFEM manual).
During the calculation, the horizontal load is increased in load steps. A static nonlinear analysis is carried out for each load step until reaching the specified limit condition. You can follow the progress of the calculation in the 'Calculation Progress' dialog.