Ground Motion & Scale Factor Parameters

[Marco Faggella 2]

hi all

I am doing some parameter analyses, using different ground motions

I want to load different motions (Motion1... MotionN) using different Scale Factors for each one of them.

but I think I am missing some syntax rules on how to transform the Scale Factor string into a number
(should I use the eval command?)
here is my script:

source MODEL.tcl
set acc Motion1
set SF_Motion1 3.0224
set fac SF_$acc
set accelFNX "Path -filePath $acc.lng -dt 0.01 -factor $fac";
pattern UniformExcitation 3 1 -accel $accelFNX

and here is what I get
WARNING invalid cFactor SF_Motion1 - Series -factor ...
WARNING invalid accel series: pattern UniformExcitation -accel <args>
expected floating-point number but got "SF_MOtion1"
while executing
"pattern UniformExcitation 3 1 -accel $accelFNX"

thank you for your help
m.

[fmk]

marco,

try this instead:
set acc Motion1
set SF_Motion1 3.0224
set fac [eval set SF_$acc]
set accelFNX "Path -filePath $acc.lng -dt 0.01 -factor $fac";

[Marco Faggella 2]

thanks, that really helped

m.