Search found 74 matches

by nahid2011
Mon Apr 18, 2016 3:20 am
Forum: OpenSees.exe Users
Topic: details about the recorder element out puts
Replies: 5
Views: 1386

Re: details about the recorder element out puts

Dear Mohsen in order to receive a response best way is to ask it under a new topic ... but first be sure to check the online manual of commands in the web site

Good luck
by nahid2011
Mon Mar 02, 2015 11:30 pm
Forum: OpenSees.exe Users
Topic: save the state of structure and continue to other analysis
Replies: 2
Views: 680

Re: save the state of structure and continue to other analys

Thanks a lot Dear Sir yes I'm looking for the first option ... would you please provide me examples of "Displacement control" analysis (?) ... (By the way it is a type analysis, isn't it?) and also let me know about the examples of two stage analysis, in which you can store the results and state of ...
by nahid2011
Sat Feb 28, 2015 10:10 pm
Forum: OpenSees.exe Users
Topic: damege of beam
Replies: 4
Views: 1046

Re: damege of beam

if you have applied a fiber section .. then it seems that you are using a frame element IMO you'd better divide your beam and use multi elements ... then modify the fiber section in the damage zone ... (I mean define a new modified fiber section for the element in the damage zone) I hope I've got yo...
by nahid2011
Sat Feb 28, 2015 2:50 am
Forum: OpenSees.exe Users
Topic: damege of beam
Replies: 4
Views: 1046

Re: damege of beam

would you please explain your question better?

sorry I can not understand what is your problem?
by nahid2011
Sat Feb 28, 2015 2:47 am
Forum: OpenSees.exe Users
Topic: save the state of structure and continue to other analysis
Replies: 2
Views: 680

save the state of structure and continue to other analysis

Hi Sir/Madam I know my question looks very simple ... but actually I have simplify it Assume a 2 node element (A,B) ... I want to push node A in X direction (Xa=1 cm) and read the force and stresses in the element and then push node B in Y direction to (Ya=1cm) how I can script such an analysis? Wou...
by nahid2011
Fri Aug 30, 2013 10:31 pm
Forum: OpenSees.exe Users
Topic: shear computation in nonlinearBeamColumn Element
Replies: 3
Views: 740

Re: shear computation in nonlinearBeamColumn Element

unfortunately now it takes time to simplify my model, but I want to add some info: In my model local axes of piers are not parallel to Global axes, and I do have torsion in my sections Could these info give you a clue? I guess in elements after computing the basic deformations, the basic forced woul...
by nahid2011
Tue Aug 27, 2013 8:34 pm
Forum: OpenSees.exe Users
Topic: shear computation in nonlinearBeamColumn Element
Replies: 3
Views: 740

shear computation in nonlinearBeamColumn Element

Hi Dear Sir/Madam I applied "nonlinearBeamColumn Element" , as anticipated, the moment is limited to estimated Mp, which, can lead to a Vmax (shear) limitation too. However in some cases whille V passess the Vmax, M is limited to Mp I can not rationalize the case. Would you please instruct me the me...
by nahid2011
Tue Aug 27, 2013 8:11 pm
Forum: OpenSees.exe Users
Topic: flat slider element problems
Replies: 2
Views: 963

Re: flat slider element problems

Dear Yilmaz

Thanks for your reply
well at last I My self solved the problem :D

in fact kint is the threshold displacement,

so if Fy=mu*N then the actual stiffness is K=Fy/kint

by very simple examples you can see that too

iyi şanslar
by nahid2011
Tue Jul 30, 2013 11:26 pm
Forum: OpenSees.exe Users
Topic: save mode shaps
Replies: 1
Views: 452

save mode shaps

Dear Sir or Madam

I conduct modal analysis and I computed periods and I display the mode shapes,

But in order to present them in my paper is there any easy way to save this shapes and present them?

Would you please help me?

Thanks a lot

Best wishes
by nahid2011
Tue Jul 16, 2013 2:18 am
Forum: OpenSees.exe Users
Topic: flat slider element problems
Replies: 2
Views: 963

flat slider element problems

First Q: Dear Sir or Madam In the below command for flatSlider Element I do not have any Idea about defining the (Kint) element flatSliderBearing $eleTag $iNode $jNode $frnMdlTag $kInit -P $matTag -T $matTag -My $matTag -Mz $matTag When I define a very big (Kint) the structure becomes unstable with ...
by nahid2011
Sat Jul 13, 2013 6:39 pm
Forum: OpenSees.exe Users
Topic: friction slider modeling
Replies: 3
Views: 861

Re: friction slider modeling

First Q: Dear Sir or Madam Regarding to your guide I had a look to the flatSliderElement element flatSliderBearing $eleTag $iNode $jNode $frnMdlTag $kInit -P $matTag -T $matTag -My $matTag -Mz $matTag In this command I do not have any Idea about how to determine the (Kint) When I define a very big (...
by nahid2011
Thu Jul 11, 2013 10:46 pm
Forum: OpenSees.exe Users
Topic: friction slider modeling
Replies: 3
Views: 861

Re: friction slider modeling

thanks a lot,
I've seen that command but I was not sure

grazie
by nahid2011
Mon Jul 08, 2013 11:09 pm
Forum: OpenSees.exe Users
Topic: friction slider modeling
Replies: 3
Views: 861

friction slider modeling

Dear Sir or Madam I would like to model a friction slider connection. I had in mind Zero Length element, and then I struggled to provide a proper uniaxialMaterial command which can represent a friction sliding model may be the below command suits: uniaxialMaterial ElasticPP $matTag $E $epsyP the pro...
by nahid2011
Mon Jul 08, 2013 10:21 pm
Forum: OpenSees.exe Users
Topic: analysis parameters
Replies: 3
Views: 1753

Re: analysis parameters

:))

I had your proposed measures in my code, I understood that I have to scale all of the records.

Thanks alot
by nahid2011
Sun Jul 07, 2013 9:58 pm
Forum: OpenSees.exe Users
Topic: analysis parameters
Replies: 3
Views: 1753

analysis parameters

Dear Sir or Madam I have built a big bridge model for nonlinear time history analysis. Among 10 strong ground motion record, only for one I have analysis failure. However for stronger records with high energy content the analysis is completed successfully. I refined the dt analysis ( dt analysis= 0....