Revision 1 posted to Structural Analysis and Design - Wiki by Sye on 12/11/2014 7:32:41 PM
It seems like multiple blocks of the generate floor spectrum command has been used in the file. STAAD.Pro only allows one such block as shown next
GENERATE FLOOR SPECTRUM
…
END FLOOR SPECTRUM
One can have floor spectra reported for multiple floors and in various directions but all these have to be specified as part of the single generate floor spectrum command block. The Technical Reference Manual section 5.32.10.3 titled Floor Spectrum Response contains details on specifying the floor spectrum input.
Tags: Floor spectrum, Multiple Floor spectrum generation block not allowed