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Thanks for your reply! Can you give me some examples ?

I have already modelded some columns under variable axial load proportional to lateral displacement.I used sp and load command to load axial force and displacement through files because wo have known the patterns before the analyse. I also want to model some columns in static reversed cyclic test un...

Thank you very much!

I am modeling the behavior of a RC column in bidirectional load cycle test then I build 3D model for it. I used fiber section and Aggregate shear deformation.The analytical results is OK. But I want my model to be more precise so I add Bond_SP01 material to model slip deformation then the result bec...

I am modeling the behavior of a RC column in static reversed cyclic test. I got many details about some tests at nisee.berkeley.edu/spd/ and modeled them. I compared the experimental and analytical result and the initial stiffness of analytical results are always larger than experimental results so ...

[quote="carnatin"]the residual displacement is the displacement which is not zero?[/quote]

Yes,the residual displacement I mentioned here is it.

Hi silvia I read some replys in this community,someone mentioned Wallace and new element he proposed which can count flexture-shear interaction. Where can I get this new element. Moreover, I always can not find the command , the material model and the element somebody mentioned . Is the manual updat...

[quote="carnatin"]How to get residual displacement? By recorder node displacement? Thanks [/quote]

yes,if the residual displacement exists the node displacement will show it.

[quote="silvia"]wow, most people want more residual displacement. try playing with the residual strength of the concrete, increase it. also, try using hysteretic rather than stee02 if you do go to large strains.[/quote] Hello,silvia. I tried hysteretic material instand of steel02 .The resu...

OMG,how lucky I am!
I will try it.Thanks

I'm doing nonlinear transient analysis of a scale ten story-three bay RC frame.The RC frame is a scale model conducted at the University of Illinois, Urbana (Cecen, 1979).The model was subjected to scaled ground excitations with 2.5 time compression of the 1940 El Centro accelerogram. The peak base ...

[quote="silvia"]yes, you are right, it is force versus strain.
i'd just use an elastic relationship...[/quote]

elastic relationship?
Any body knows how to define inelastic relationship?

[quote="silvia"]the shear is uncoupled. how you create the shear stress/strain relationship is up to you.[/quote] Thanks silvia. I think it is shear force/strain but stress/strain relationship ,right? Of course I can create the relationship myself.The problem is how to analyse the section ...

Hello everybady! I am modeling the response of a R/C cantilever column to lateral loading. The total lateral deformation of the column is composed of three components,namely,flexural,bar slip,and shear deformation. By using fiber section and BARSLIP Material I can caculate flexural an bar slip defor...

Thanks for your reply！ I asked someone who played OS for a long time for a help.I showed him my script that was about R/C structure and he said that you cann't use dispBeamcolumn in R/C structure. It was very hurry at that time and I didn't ask why. Is he right??? In my script ,I use Load Control fo...