Search found 20 matches

by KhaledSaif
Fri Jul 15, 2016 3:49 pm
Forum: OpenSees.exe Users
Topic: How to save the residual displacement into a file?
Replies: 2
Views: 470

Re: How to save the residual displacement into a file?

Thanks, the close code solved it :D
by KhaledSaif
Fri Jul 15, 2016 12:35 am
Forum: OpenSees.exe Users
Topic: How to save the residual displacement into a file?
Replies: 2
Views: 470

How to save the residual displacement into a file?

Hi all, This might be silly question but I couldn't manage to do it :( I just need to save the residual displacement to a file. I know that the recorder gives all the displacements and the last one will be the residual, however, I need the output file to contain only the residual displacement. I use...
by KhaledSaif
Fri Jun 03, 2016 11:37 pm
Forum: OpenSees.exe Users
Topic: Consideration of P-Delta effect in time history analysis
Replies: 6
Views: 1195

Re: Consideration of P-Delta effect in time history analysis

Thank you very much. I just plotted the top displacement vs the base moment for each analysis and since the difference between including/excluding P-Delta effect (with current input) is small, the two graphs seems to be identical. And as I was expecting a big difference (50-100mm like a previous stu...
by KhaledSaif
Wed Jun 01, 2016 1:43 pm
Forum: OpenSees.exe Users
Topic: Consideration of P-Delta effect in time history analysis
Replies: 6
Views: 1195

Re: Consideration of P-Delta effect in time history analysis

Thanks for reply. The displacements are not 0, but the same results for both cases. Here is the code which is a cantilever column with axial load. I used LA01 earthquake record, just use any. Thanks for help. # SET UP ----------------------------------------------------------------- wipe; # clear me...
by KhaledSaif
Tue May 31, 2016 9:51 pm
Forum: OpenSees.exe Users
Topic: Consideration of P-Delta effect in time history analysis
Replies: 6
Views: 1195

Re: Consideration of P-Delta effect in time history analysis

Hi there, thanks for replying. Yes, I am using the loasdConst command. Here is the code for applying the axial load P : geomTransf PDelta 1; element nonlinearBeamColumn 1 1 2 4 100 1; pattern Plain 1 Linear { load 2 0 [expr -0.05*$Weight] 0 }; set Tol 1.0e-12; test NormDispIncr $Tol 10; constraints ...
by KhaledSaif
Fri May 27, 2016 2:18 am
Forum: OpenSees.exe Users
Topic: Consideration of P-Delta effect in time history analysis
Replies: 6
Views: 1195

Consideration of P-Delta effect in time history analysis

Hi all, I tried a nonlinear time history analysis on a cantilever column to see P-Delta effect on the results. To include P-Delta I used PDelta geometric transformation, to ignore it I just used the Linear geometric transformation. The problem was that the two results were identical :\ I tired to in...
by KhaledSaif
Thu May 26, 2016 2:44 am
Forum: OpenSees.exe Users
Topic: Pushdown Analysis / Moment-curvature
Replies: 3
Views: 1252

Re: Pushdown Analysis / Moment-curvature

Hi there,
there is an example about moment-curvature, just take a look at it :)
by KhaledSaif
Tue May 17, 2016 3:09 am
Forum: OpenSees.exe Users
Topic: Pushover Analysis
Replies: 4
Views: 854

Re: Pushover Analysis

fmk wrote: > how to you do load and unload .. DisplacementControl or LoadControl? .. you > might want to load in DisplacementCOntrol and unload in LoadControl .. also > remember to determine current displacement at point of 0 load for when you > want to start pushing again. Hi fmk, how to "determine...
by KhaledSaif
Tue May 17, 2016 2:17 am
Forum: OpenSees.exe Users
Topic: How to unload in Pushover Analysis?
Replies: 1
Views: 485

How to unload in Pushover Analysis?

Hi all, I am performing pushover analysis and when unloading I don't know how to set the displacement to 0 force position (the origin) so that I can push again from the same starting point. I am just checking the concrete material (Concrete04) and I want to get the stress-stain diagram with loading-...
by KhaledSaif
Mon May 16, 2016 2:44 am
Forum: OpenSees.exe Users
Topic: To admin: Errors in Examples 2b and 2c
Replies: 0
Views: 417

To admin: Errors in Examples 2b and 2c

Dear admin :) Kindly know that there are some errors in examples 2b and 2c in pushover part, they exists in this forum, following are the links: http://opensees.berkeley.edu/wiki/index.php/OpenSees_Example_2b._Nonlinear_Cantilever_Column:_Uniaxial_Inelastic_Section http://opensees.berkeley.edu/wiki/...
by KhaledSaif
Wed Apr 27, 2016 3:06 am
Forum: OpenSees.exe Users
Topic: Axial Load- Moment Interaction
Replies: 3
Views: 907

Re: Axial Load- Moment Interaction

fmk wrote:
> repeat this for different axial values (picking some pt as yield)
> http://opensees.berkeley.edu/wiki/index ... al_Command

What did u mean by "this"? its a link to UniaixialMaterial Command :(
by KhaledSaif
Sat Apr 23, 2016 1:44 am
Forum: OpenSees.exe Users
Topic: Convergence issue using Concrete02
Replies: 2
Views: 564

Re: Convergence issue using Concrete02

Thanks Alperozturk,
but "Compressive concrete parameters should be input as negative values (if input as positive, they will be converted to negative internally)."
:)
by KhaledSaif
Tue Apr 12, 2016 12:42 am
Forum: OpenSees.exe Users
Topic: Takes a long time during gravity analysis
Replies: 8
Views: 685

Re: Takes a long time during gravity analysis

Which Concrete material did u use? if you used Concrete02, try using Concrete01 and see what will happen :|
by KhaledSaif
Wed Apr 06, 2016 2:00 pm
Forum: OpenSees.exe Users
Topic: Convergence issue using Concrete02
Replies: 2
Views: 564

Convergence issue using Concrete02

Hello guys, I had a convergence issue when I used Concrete02 material in a gravity load analysis. However, when I changed it to Concrete01 (no tension strength for concrete) it worked just fine. Any idea why this happened? Thanks Here is the code: # MATERIAL parameters # confinded concrete set fpc [...
by KhaledSaif
Wed Apr 06, 2016 1:54 pm
Forum: OpenSees.exe Users
Topic: Convergence Test Failed :(
Replies: 5
Views: 797

Re: Convergence Test Failed :(

Ok, and thanks :)

Regards,
Khaled