Hi everyone,
How can I concept Strength degradation in my RC model?
Best,
Strength degradation
Moderators: silvia, selimgunay, Moderators
Re: Strength degradation
It depends how you are modelling it, what elements are you using? what material model are you using?
If you are using a lumped plasticity, I would suggest having a look at the Ibarra Medina Krawinkler material models. There is a PEER report by Haselton et al. that talks about calibration of RC elements with this model and talks about degradation also.
If you are using a lumped plasticity, I would suggest having a look at the Ibarra Medina Krawinkler material models. There is a PEER report by Haselton et al. that talks about calibration of RC elements with this model and talks about degradation also.
Re: Strength degradation
Well it depends how you are modelling it as gor said
http://abuad.edu.ng
http://abuad.edu.ng
Re: Strength degradation
Dear gor and tino,
Thank you for your answer, I modeled a three story 2D RC frame with concrete01 and steel02 material and nonlinearBeamColumn element.
Thank you for your answer, I modeled a three story 2D RC frame with concrete01 and steel02 material and nonlinearBeamColumn element.
Re: Strength degradation
Well if you want to use a fibre element, then the degradation will need to come from your definition of the materials of the fibre section. Since you are using Steel02 this could be difficult since Steel02 doesn't have an ultimate strain or some fracturing in it. In theory, it will keep going forever unless you incorporate some kind of fatiguing or damage. Again, I would suggest looking into lumped plasticity hinge elements as a good deal of work has been done to define degradation in these, such as the report i previously mentioned.