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Hey everyone ... For modeling of a "fiber section" in a 3D model, torsional stiffness is required and should be concocted within definition of the fiber section (i.e. G*J). Is it required to add something for torsion, via section aggregator, for example a linear section for torsion? thanks...

Dear sir
Thanks for reply. That worked and I could address the problem using "loadConst -time 0.0"
Kind regards
Have a nice day

Hi everyone I'm going to apply few number of records on a RC model intended to consider damage accumulation, for example what happens in main and after shocks. I've separated script of model of frame and analysis script. Once analysis under each record finishes, EQ load pattern is removed, and recal...

thanks for the reply and your instruction. have a very good time

Thank you all for notes and the article

And in displacement-based pushover, do we use "sp" in order to apply displacement values? And also do we use load-control integrator?

Dear all In order to define lateral pattern in pushover analysis, two different approaches may be used; 1- "Force based" for which lateral pattern is essentially force values at DOFs. 2- "displacement based" that define displacement values in DOFs. Would you please check the foll...

Dear Vesna,
thanks for your reply. I've already read ch. 11 from the book by Prof. Chopra, and I will read the paper you have sent.
regards

Dear Silvia I'm going to perform nonlinear dynamic analysis for a cantilever RC column. For a unique column, first I used "mass" and the other time "stiffness" proportioned damping. Results are different in nonlinear analysis, (although there is no difference for linear analysis)...

I have modeled few tests from PEER Column database. As axial load ratio is less than about 1% (or about it), there is good agreement between test and numerical data using fiber models (steel02 and concrete02 models), however increasing the load ratio to 2% or more, there is considerable difference. ...

Dear all; is there anyone who knows research groups on "fluid-structure interaction" using opensees? or anyone knows who to model "fluid-structure interaction" using opensees? I'm going to model a cantilever with the water at its base in nonlinear static and dynamic analysis than...

recentaly I got ver. 2.2.2, it is okay on mu PC, windos-XP

Thanks for reply,
I installed Microsoft Visual C++ 2005 Redistributable Package but it does not help. Is it related to Microsoft, and if yes what should I ask them.

also when I use tcleditor this is the message:
"The system can not execute the specified program"

sorry for delay

error is some thing like this:

"This application has failed to start because the application configuration is incorrect"

see the following link:

[url]http://sites.google.com/site/arhatami/H ... edirects=0[/url]

Thanke you.

Dear Silvia,

I cannot execute OpenSEES ver. 2.2.1 on windows-XP. I checked it on an old PC and a new laptop. In both I had problem with XP, but it is okay on windows7. Is it a general case?

Thanks, best regards