How to create a Harmonic Spectrum Load in AutoPIPE?
Please see the following AutoPIPE help section: Help > Contents> Contents Tab> Bentley AutoPIPE> Command Reference> Load Commands> Spectrum Group> Harmonic
This will explain how to add a harmonic load into AutoPIPE using a dialog. Otherwise, see the bottom of the document and click on "Creating an ASCII Harmonic Load File ". This will provide instructions on how to create the actual text file used by AutoPIPE. This is also the same type of file created by Bentley PULS and exported to AutoPIPE.
Dynamic "Harmonic" Analysis
Bentley AutoPIPE