Hi dear friends;
I am performing a displacement-based adaptive pushover analysis. I need to apply an incremental displacement in every step of analysis instead of an absolute displacement. if I use sp command, an absolute displacement will be applied. can anyone help me, please?
Thanks
How to apply an incremental displacement using sp command?
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newarrived
- Posts: 14
- Joined: Sat Aug 16, 2014 11:14 am
- Location: Iran, Shiraz
Re: How to apply an incremental displacement using sp comman
salam,
You can use "for loop" to overcome this issue. First define displacement increment using sp command. In for loop specify "integrator LoadControl $dLambda1". set dLambda1 to desire quantity.
This is a simple example:
...
sp 1001 1 1
...
for {set i 1} {$i<10} {incr i} {
set dLambda1 [expr 0.1*$i]
integrator LoadControl $dLambda1
analyze 1
}
This example would apply displacement increments: 0.1 0.2 0.3 ...
You can use "for loop" to overcome this issue. First define displacement increment using sp command. In for loop specify "integrator LoadControl $dLambda1". set dLambda1 to desire quantity.
This is a simple example:
...
sp 1001 1 1
...
for {set i 1} {$i<10} {incr i} {
set dLambda1 [expr 0.1*$i]
integrator LoadControl $dLambda1
analyze 1
}
This example would apply displacement increments: 0.1 0.2 0.3 ...