A multifiber beam model for the thermo-mechanical analysis of RC structures: simulation of the ConCrack benchmark RG8 test

Author(s): Jacky Mazars, Stéphane Grange, Matthieu Briffaut
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 1
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
ISBN:978-2-35158-199-5
e-ISBN:978-2-35158-198-8
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 21-28
Total Pages: 8
Language: English

Abstract: The aim of this work was to propose a complete and efficient modeling approach for simulation of the entire loading program of the RG8 test (restrained shrinkage part and mechanical part) performed in the framework of the French national program CEOS.fr. This was made possible by using a multifiber beam discretization including a THM model coupled with a unilateral concrete damage model. Due to the massive character of the structure, the scale effect required to be taken into account. This was done here through the use of a Weibull law that allows the measured mechanical characteristics of concrete to be transposed from a standardized test piece to the scale of the beam tested. The results of the in-situ measurements show the relevance of the approach.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00