The OpenSees Community

FRPConfinedConcrete Uniaxial Material Tester: Check the following page - https://opensees.berkeley.edu/wiki/inde ... edConcrete

OpenSees FRPConfinedConcrete Wikipage is restored.....

Example: Inelastic Time-History Analysis of FRP-Retrofitted Bridge Column Subjected to Horizontal and Vertical Excitation:

https://opensees.berkeley.edu/wiki/inde ... edConcrete

MEGALOOIKONOMOU K.G. (2019, December). Modeling the behavior of shear-critical reinforced concrete columns under lateral loads. Ph.D. Thesis, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Cyprus, Nicosia, Cyprus. https://doi.org/10.12681/eadd/47504 Online R...

OpenSees Seminar on FRPConfinedConcrete Material Model

Please click on the following link: https://www.youtube.com/watch?v=kGiHERNnfTM

For 'FRPConfinedConcrete' performance you could check also the following PhD thesis:

https://theses.lib.polyu.edu.hk/handle/200/8695

P.S: In the above version of the paper the FRP jacket failure criterion due to buckling of longitudinal compressive steel bars was not included in FRPConfinedConcrete uniaxial material. More information could be found here:

https://bigeconomy.gr/wp-content/upload ... ournal.pdf

https://doi.org/10.1016/j.compstruct.2017.07.075 Ahmed M. Ismail, Mohamed F.M. Fahmy, Zhishen Wu, Simulating the lateral performance of FRP-confined RC circular columns using a new eccentric-based stress-strain model, Composite Structures, Volume 180, 2017, Pages 88-104, ISSN 0263-8223, https://doi....

Dear All,

With the help of Dr. McKenna the problems related to the convergence of FRPConfinedConcrete material in Opensees have been resolved (Source Code Modification Number 5970).

Thank you for your attention.

Kind Regards,

Kostas

I have received some e-mails from other researchers/students regarding the use of the material model "FRPConfinedConcrete" that it is inserted in Opensees reporting that it is very slow and that it doesn't give any results. Therefore I was wondering if you have any idea about what is causi...

Thank you very much for your immediate reply. I understand your comment but I want just to mention that because I have imagined that this might be the case I have already tried the same geometry and connectivity with elastic elements and the static analysis runs without problem. However, I will take...

I have prepared the input file for a one floor reinforced concrete frame (3d model) and I run the analysis only with gravity loads and it fails. The messages I get are the following: WARNING BandGenLinLapackSolver: solve () - LAPACK routine returned 4 WANRING NewtonRaphson::solveCurrentStep () - the...