Search found 9 matches

by moharrami
Wed Feb 29, 2012 8:57 am
Forum: OpenSees.exe Users
Topic: Problem in BOUC WEN model
Replies: 7
Views: 4189

Re: Problem in BOUC WEN model

vesna wrote: > Here you can find references where you can read more about how to define > BoucWen material model to represent stress-strain relationships that you > want: > http://opensees.berkeley.edu/wiki/index.php/BoucWen_Material Hi Vensa, Thank you for your response. I followed exactly the rule...
by moharrami
Fri Jan 20, 2012 9:28 am
Forum: Documentation
Topic: Bouc Wen Model
Replies: 1
Views: 1906

Bouc Wen Model

Dear all, I modeled a single story one bay building in 3d with opensees. I defined the nonlinearity properties of a section with bouc wen model; I changed the post hardening ratio (alpha) value but it seems the program is not sensitive to it. I also chose Elcentro ground motion for the dynamic analy...
by moharrami
Tue Jan 17, 2012 10:57 am
Forum: OpenSees.exe Users
Topic: Problem in BOUC WEN model
Replies: 7
Views: 4189

Re: Problem in BOUC WEN model

moharrami wrote:
moharrami wrote:
Hi Silvia,
In Bouc Wen model we did not specified the non-linearity properties of material.
I would appreciate if you let me know where we should define the material properties for Bouc Wen model.
by moharrami
Mon Jan 16, 2012 1:06 pm
Forum: OpenSees.exe Users
Topic: Problem in BOUC WEN model
Replies: 7
Views: 4189

Re: Problem in BOUC WEN model

moharrami wrote: > Hi Silvia, > > I have tried many times to model the element nonlinear behavior with uniaxial > material BOUC WEN model. As you know the model is based on stress and strain > relationship but there is no any definition for the yielding properties of material in the model > .When I ...
by moharrami
Sun Jan 15, 2012 12:06 pm
Forum: OpenSees.exe Users
Topic: Problem in BOUC WEN model
Replies: 7
Views: 4189

Problem in BOUC WEN model

Hi Silvia, I have tried many times to model the element nonlinear behavior with uniaxial material BOUC WEN model. As you know the model is based on stress and strain relationship but there is no any definition for the yielding properties of material .When we applied it in the model even by using fib...
by moharrami
Mon Aug 15, 2011 3:30 pm
Forum: OpenSees.exe Users
Topic: Bouc wen Model
Replies: 6
Views: 4164

Re: Bouc wen Model

Dear Vesna,

Than you for your email but I am sure I defined the right parameter. I would appreciate if you looked at the script and let me know if I am making any mistake in the program.
This is just a single degree of freedom column.
Thanks
by moharrami
Mon Aug 15, 2011 10:03 am
Forum: OpenSees.exe Users
Topic: Bouc wen Model
Replies: 6
Views: 4164

Re: Bouc wen Model

Hi Thank you so much for your reply I modeled a column by BOUC-Wen Model which is a smooth hysteresis model . My ground motion is ELcentro1940 and my coulm specification is: damping ratio=0.02 , mass=1.0 stiffness=16.0 and with the hysteresis parameter of bouc wen mode alfa=0.03 and beta=gamma=1.0. ...
by moharrami
Fri Aug 12, 2011 3:49 pm
Forum: OpenSees.exe Users
Topic: Bouc wen Model
Replies: 6
Views: 4164

Re: Bouc wen Model

Hi Thank you so much for your reply I modeled a column by BOUC-Wen Model which is a smooth hysteresis model . My ground motion is ELcentro1940 and my coulm specification is: damping ratio=0.02 , mass=1.0 stiffness=16.0 and with the hysteresis parameter of bouc wen mode alfa=0.03 and beta=gamma=1.0. ...
by moharrami
Fri Aug 12, 2011 12:17 pm
Forum: OpenSees.exe Users
Topic: Bouc wen Model
Replies: 6
Views: 4164

Bouc wen Model

Hello eveyone, I modeled a single degree of freedom column with the Bouc- Wen model for nonlinear time history analysis for EL Centro 1940 earthquake. The result I got it. It is not totally different from the paper .I would appreciate to let me know where is the problem. THE SCRIPT OF PROGRAM wipe; ...