Search found 7 matches

by farazmizani
Sun Feb 21, 2021 12:52 pm
Forum: OpenSees.exe Users
Topic: 3D RC frame Pushover
Replies: 3
Views: 1168

Re: 3D RC frame Pushover

Dear @selimgunay thanks for your guidance my displacement and node reaction is zero in static pushover before converge error and when I use nonlinear dynamic analysis I get converge error flag 3 and I have max displacement 0.0005 meter which is almost zero. I tried all types of solutions in static p...
by farazmizani
Sun Feb 07, 2021 3:52 am
Forum: OpenSees.exe Users
Topic: 3D RC frame Pushover
Replies: 3
Views: 1168

3D RC frame Pushover

Hello everyone, I modeled a 3d RC structure based on example no.7 codes, the model is ok with eigen analysis and gravity analysis but when I wanna get a displacement-based pushover curve, this error shows up: *BTW I tried every possible analysis command type but the result was the same* if you have ...
by farazmizani
Fri Jan 19, 2018 3:10 am
Forum: OpenSees.exe Users
Topic: nonlinear time history analysis
Replies: 12
Views: 3514

Re: nonlinear time history analysis

Thank you selimgunay and fmk for your guide , I have 21.9117in. peak displacement now.
by farazmizani
Thu Jan 18, 2018 11:06 am
Forum: OpenSees.exe Users
Topic: nonlinear time history analysis
Replies: 12
Views: 3514

Re: nonlinear time history analysis

yes I have it, and I tried other ground motions but the results were negligible Again.
by farazmizani
Wed Jan 17, 2018 2:35 pm
Forum: OpenSees.exe Users
Topic: nonlinear time history analysis
Replies: 12
Views: 3514

nonlinear time history analysis

Hello everyone, I model a cantilever based on Performance Modeling Strategies for modern reinforced concrete bridge columns by michael P.Berry & Eberhard, and I use model's details from an article of PEER anyway, my question is , why my model has negligible displacement and base shear in nonlinear t...
by farazmizani
Sun Jan 14, 2018 5:04 am
Forum: OpenSees.exe Users
Topic: rc and rt in uniaxialMaterial ConcreteCM
Replies: 5
Views: 1880

Re: rc and rt in uniaxialMaterial ConcreteCM

hello everyone, I use concreteCM command in my model and I have the same problem which is finding exact value for shape parameter, I read all the references( I mean 6 references that are in wiki page ) and all of them suggested using chand and mander 1994 eq (3-46c) which is r=f'c/750-1.9 (psi) , bu...
by farazmizani
Thu Jan 11, 2018 4:46 am
Forum: OpenSees.exe Users
Topic: Calculate deformation of a RC column in opensees
Replies: 1
Views: 800

Calculate deformation of a RC column in opensees

Dear Mr./Mrs. As we all know the deformation of an RC model includes contributions of flexural deformations, reinforcement slippage from its anchorage zone(support rotation) and shear deformations. I use opensees in my thesis therefore at the first phrase I want to Compare and verify opensees respon...