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Thank you for reply I use your useful scripts to calculate elastic response spectra for a series of ground motions. The ground motion I used is got from elastic design spectrum. With your scripts elastic response spectrum for this ground motion is not compatible with original spectrum. Results from ...

Dear Silvia About the damps I found large difference according to K-prop factor and M-prop factor. Which one should I use? When T>1s acceleration values uing M-prop factor are larger when uing the other softwares, also larger than the elastic response spectrum. How to deal with this problem? Thank y...

When I didn't want to simulate the pinching and damage how to define the parameters ?
PinchX=1, PinchY=1, Damage1=0, Damage2=0, is this OK?

In the Moment-Curvature analysis of RC fiber section how can I transfer the real curve to bi-linear curve?

Tnank you for advance

Thank you for help.

With Version1.7.5 I get both files

Can somebody help me?

I'm looking forward to your help.

For the analysis of cable stayed bridge how to specity the initial strain or stress for Cable Element?

Is the Prof Filippou E-mail filippou@ce.berkeley.edu? I did't get the reply for this E-mail.
Is the Stress-Strain Compressive curve of concrete01 and concrete02 based on the Kent-Scott-Park model?

But I only need to simulate the longitudinal and transversal hysteretic relation(shear direction) of bridge bearing.
When I use ther zeroleng element without specifying the constraints of 5 and 6 direction the result is reasonable.

recorder EnvelopeNode -file $dataDir/DFreeENvelope.out -time -node 141 -dof 1 disp
recorder EnvelopeElement -file $dataDir/FEnvy1111.out -time 1111 localForce
when I only add these two commands to Example07, and no warnings appear OS is still not giving output whether "-time" appears.

NO. The same as above.
When I use ther zeroleng element the following commands are used.

equalDOF 147 1 3 4
uniaxialMaterial Steel01 1 331.2 165600 0.01
uniaxialMaterial Steel01 2 331.2 165600 0.01
element zeroLength 1001 1 147 -mat 1 2 -dir 1 2

Thank you

silvia wrote:okey. then something else is causing the singular matrix.

If I only simulate the longitudinal that's ok.
If I use the Zero-length Element that's ok.
So I think the other scripts are ok. I am confused....

Can somebody help me?
I need to know more about concrete02 and steel02.
I'm looking forward to your help.

silvia wrote:did you remove the -time in the command.
please print the recorder command as you have it now.

Yes.
But no file get. I am confused.....
Thank you for attention.