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STAAD Commands and Input Instructions
Section 5
5-242
The data in the external file must be provided as one or more time-
force pairs per line as shown in the following example.
Data in Input file
UNIT . . .
DEFINE TIME HISTORY
TYPE 1 FORCE
READ THFILE
ARRIVAL TIME
0.0
DAMPING 0.075
Data in the External file “THFILE”
0.0 1.0 1.0 1.2
2.0 1.8
3.0 2.2
4.0 2.6
Example for Harmonic Loading Generator
UNIT . . .
DEFINE TIME HISTORY
TYPE 1 FORCE
*Following lines for Harmonic Loading Generator
FUNCTION SINE
AMPLITUDE 6.2831 FREQUENCY 60 CYCLES 100 STEP 0.02
ARRIVAL TIME
0.0
DAMPING 0.075