Compressive behaviour of steel-fibre reinforced concrete in Anne2605-1729x L of new Eurocode 2

Compressive model for SFRC in Annex L of Eurocode 2; Combinedcompression/flexural classification for any SFRC; Impact of the ductility and toughness enhancement of composite steel-SFRCsections on Eurocode 4

Abstract :

[en] This paper describes the model for the compressive stress-strain behaviourof steel-fibre reinforced concrete (SFRC) in Annex L of the new Eurocode 2(CEN, Eurocode 2: Design of concrete structures. Part 1-1: General rules– Rules for buildings, bridges and civil structures, prEN 1992-1-1: 2022;EC2 in short), developed within CEN TC250/SC2/WG1/TG2 – Fiber rein-forced concrete. The model uses functions obtained from correlations withan extensive database comprised of 197 well-documented SFRC compres-sive tests and 484 flexural tests. We detailedly explain the model and derive the strain values for the parabola-rectangle model for ULS of SFRC in An-nex L. In addition, we also use the model and the correlations with thedatabase to provide a link between the compressive and the flexural perfor-mance classes in EC2, which allows a complete definition of any particularSFRC. Likewise, we derive parabola-rectangle strain values for each flexuralperformance class, which is mainly advantageous for the stronger flexuralperformance classes. Finally, we give an example showing the enhancementin strength and ductility of a composite steel-SFRC section endorsed withthe new model, which results of 15% and 100%, respectively.

Research center :

Universidad de Castilla-La Mancha

Disciplines :

Civil engineering

Author, co-author :

Ruiz, Gonzalo; Universidad de Castilla-La Mancha UCLM

de la Rosa, Angel; UCLM

Poveda, Elisa

Zanon, Riccardo; ArcelorMittal

SCHÄFER, Markus ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)

Wolf, Sebastian; ArcelorMittal

External co-authors :

yes

Language :

English

Title :

Compressive behaviour of steel-fibre reinforced concrete in Anne2605-1729x L of new Eurocode 2

Publication date :

December 2022

Journal title :

Hormigón y Acero

ISSN :

0439-5689

eISSN :

2605-1729

Special issue title :

Hormigón y Acero

Peer reviewed :

Peer Reviewed verified by ORBi

Focus Area :

Physics and Materials Science

Additional URL :

http://www.hormigonyacero.com/index.php/ache/article/view/3092

Funders :

Ministerio deCiencia e Innovaci ́on, Spain, through grants PID2019-110928RB-C31 and RTC-2017-6736-3, and theJunta de Comunidades de Castilla-La Mancha, Spain, throughgrant SBPLY/19/180501/000220

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since 26 December 2022

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