Parameters of a structure seismic analysis depend on a seismic code used during calculations of a structure influenced by seismic impact. Select Russian seismic code (SNiP II 7-81) 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:
- Soil category
- Region seismic type
- Curve type
- Seismic type of structure base
- Values of coefficients: A, K1, K2, K_psi (for one code) or Ko, K1 and A, (for the other code).
In the lower part of the dialog, the Direction definition and Filters buttons are located.
The details concerning this structure analysis method can be found in the mentioned code.