Title: Numerical models for designing steel-fibre-reinforced concrete structures: Why and which ones?

Author(s): Pierre Rossi; Jean-Louis Tailhan; Dominic Daviau-Desnoyers

Publication: Symposium Paper

Volume: 310

Issue:

Appears on pages(s): 289-300

Keywords: Steel-fibre-reinforced concrete, numerical model, structural design, cracking process

DOI:

Date: 3/17/2017

Abstract:

This paper enumerates the reasons that motivate the use of finite elements simulations for the analysis of cracking behaviour in the design of SFRC structures. These reasons are mainly due to the irrelevancy of current design recommendations, which do not adequately take into account certain technical problems, such as the evaluation of the crack openings in SFRC structures under serviceability loads, the analysis of the non-linear behaviour of concrete structures under shear and punching, and the analysis of the non-linear behaviour of indeterminate concrete structures.

This paper also proposes the main criteria that a relevant numerical model of SFRC cracking needs to respect in order to simulate cracking. Finally, an example of such a relevant model is presented along with its validation in the context of the shear behaviour of a large SFRC beam.