Parameters of a structure seismic analysis depend on a seismic code used during calculations of a structure influenced by seismic impact. Select French requirements (Arreté du 10 mai 1993 fixant les regles parasismiques applicables aux installations soumises a la législation sur les installations classées(JO du 17 juillet 1993)) in the New Case Definition dialog or click Parameters in the Analysis Type dialog.
To complete the seismic analysis according to the rules given in a code, define the following parameters:
In the lower part of the dialog, the Direction definition and Filters, and Residual mode buttons are located.
The details concerning this structure analysis method can be found in the mentioned code.