SteelBRB element

Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

Moderators: silvia, selimgunay, Moderators

Post Reply
martinmasanes
Posts: 38
Joined: Thu Jun 27, 2013 2:39 pm
Location: universidad de los andes

SteelBRB element

Post by martinmasanes » Sat Sep 28, 2013 5:03 pm

Hello, I'm doing some research on SCBF and BRBF, and recently installed the new version of opensees (2.4.2) because i read that now it includes the SteelBRB element, but there is no explanation of it's argument in the wiki, and the only info. that i can get was from the WebSVN. There you can see that the arguments for the element are:
E, sigmaY0, sigmaY_T, alpha_T, beta_T, delta_T, sigmaY_C, alpha_C, beta_C, delta_C, Tol.
Can you explain me what they mean (the only one that is obvious is E), wich are optional, anf if they have default values??


thanks!!!

liaopengzhan
Posts: 6
Joined: Wed Dec 04, 2013 3:00 am
Location: USTS

Re: SteelBRB element

Post by liaopengzhan » Thu Jan 16, 2014 12:46 am

hi,I am doing the same research with SteelBRB just like yours ,I just don't know how to use this element,either;Have you solve your problems? this is my email: lpz1107@163.com, we can have some discussions.

baijiulin
Posts: 5
Joined: Fri Jul 03, 2009 12:37 am
Location: Harbin Institute of Technology(HIT), China

Re: SteelBRB element

Post by baijiulin » Tue Jan 21, 2014 7:03 pm

For SteelBRB material, the command is:
uniaxialMaterial SteelBRB $matTag $E $sigmaY0 $sigmaY_T $alpha_T $beta_T $delta_T $sigmaY_C $alpha_C $beta_C $delta_C <Tol> ;
where the meaning of each parameter can be found from http://opensees.berkeley.edu/WebSVN/fil ... p&rev=5427, and also can refer to journal of "Elastoplastic model for steel buckling restrained braces".

martinmasanes
Posts: 38
Joined: Thu Jun 27, 2013 2:39 pm
Location: universidad de los andes

Re: SteelBRB element

Post by martinmasanes » Fri Feb 28, 2014 9:12 am

Thanks!, just passing here and found your answer.

huzb
Posts: 21
Joined: Mon Aug 04, 2014 7:23 pm
Location: Tongji University

Re: SteelBRB element

Post by huzb » Wed Aug 27, 2014 6:22 am

baijiulin wrote:
> For SteelBRB material, the command is:
> uniaxialMaterial SteelBRB $matTag $E $sigmaY0 $sigmaY_T $alpha_T $beta_T
> $delta_T $sigmaY_C $alpha_C $beta_C $delta_C <Tol> ;
> where the meaning of each parameter can be found from
> http://opensees.berkeley.edu/WebSVN/fil ... p&rev=5427,
> and also can refer to journal of "Elastoplastic model for steel buckling
> restrained braces".

dear baijiulin
i want to know which element should i choose after defining SteelBRB material? corotTruss?

jmmrtnz
Posts: 2
Joined: Thu May 08, 2014 4:40 pm
Location: Universidad de Chile

Re: SteelBRB element

Post by jmmrtnz » Fri Oct 17, 2014 11:59 am

Hello,

How can I get internal variables of the model, like d1, or mu? is it possible?
Thanks!

baikunthasilwal
Posts: 24
Joined: Wed Feb 20, 2013 4:23 pm
Location: University of Virginia

Re: SteelBRB element

Post by baikunthasilwal » Wed Sep 09, 2015 1:41 pm

Hi Everyone,

Has anyone solved the BRB model issues? If so, Please provide important finding of the model for improving the response of the BRB.

Post Reply