The OpenSees Community

Hi silvia, I used this concrete model for modelling the rectangular concrete wall and Jon waugh used to model T-walls under multi directional loading. But those are 2D models. I never tried using this material in 3D model. May be jon waugh can say more about it as he is the one who coded this materi...

HI silvia, I don't use fl1 and fl2. I didn't use those equations ( A, x', B etc..) to get ecc and fcc. I used the equations given in priestley book on seismic design of bridges to get ecc,fcc values. It is based on chang and mander model, but I think, the book simplified all the complicated equation...

Hi Denis,
You can use the element recorder to monitor the slip values. it is same as stress-strain output for rebar..but just use proper material properties.

Hi silvia, Frank and others: I am trying to model initial stress in rebar using the steel02 with $sigInit option. To test the material model, I used a truss element. The option seem to be working to give the correct stain, however, the stress in the truss element is wrong at that strain level ( see ...

Hi silvia, Tahnks for the help. I took your suggestion adn used -xml. I got this output. So, I a guess the last column is gammaY, that is shear distortion. I hope I am correct. Let me know. Thanks for the help. <?xml version="1.0" encoding="UTF-8"?> <OpenSees xmlns:xsi = "ht...

Hi silvia, when i use the section deformation recorder on section aggregator, I get 4 columns of data. I am thinking those 4 columns of data represent follwing things. the first one is force 2nd column: axial strain 3rd column : curvature 4th column : shear deformation please let me know if I am cor...

Hi Silvia and others, I am modelling RC shear wall with nonlinear beam column elements. I am using sectionaggregator to account for the shear deformations. I wanted to compare the experimental shear distortion with the simulated values. So the question I have is, if there is any command available in...

Hi silvia and others, i am trying to put some initial stress in the rebar using $siginit option in steel02. I tried using a truss element to test the material model and i am getting follwing error.. I am posting the my code below.. please let me know if $siginit is not working in steel 02. or if the...

Hello silvia, here is the input file. thanks for the help. I am also attending the opensees workshop on Monday. If you have time I like to talk to you during that time. thanks, sriram. #****--------------Analyis of MAST WALL (RWC)-----------------**** #****-----------Created by Sriram on sep03 2008-...

Hello everyone, When i run my input file, I get the folwing message with out any analysis. " End of the script <C:\Sriram> reached, Press any key to continue." I created this input file by modifing some of parameters from another input file, which runs fine on opensees. SO can anyone tell ...

Hi Silvia, I am just wondering if there will be any webcast of the workshop through the webex or any other means (similar to some of NEES presentations). If there is none like that, Is there any possibility of having one. I think it will help lots of people, who will not be able to attend. please le...

HI silvia,
I did try steel 02.Even then I am getting same error. Do you think is there anything else wrong in my script.?

Hi I am trying to get the rebar stresses from the experimental strain history. I am trying to do this using a truss element and suppling the strain history as input file. but when i run the scirpt, I am getting follwoing error, I don't understand what it means. can anyone know where i am going wrong...

Hi Nero,

I want to try your material model for modeling post-tensioing. so where can get the model ? is it going to be released soon??

-sriram

Hi silvia and others, I am analysing RC shear walls and i am using ReinforcingSteel model to model the rebar. when i try to run i encountered the follwoing error. Not able to understand what is the problem.. My material defination: uniaxialMaterial ReinforcingSteel 5 71.03 97.5 28537 28.53 0.0097 0....