M. To use frequency-spectra pairs in a time history load
To instruct the program to use frequency-spectra pairs in lieu of period-spectra pairs for the time history spectrum input, use the following procedure.
These optional
commands cannot be entered via the graphical user interface. They are required
to be added using the
STAAD.Pro Editor.
-
On the
Utilities ribbon tab, select the
Command File Editor tool in the
Utilities group.
The STAAD.Pro Editor window opens with the current STAAD input file. - After the DEFINE TIME HISOTRY command, in the SPECTRUM options, add the command FREQ.
- Save the command input file and then exit the STAAD.Pro Editor.