Designing UHPFRC structures with organic fibres

Author(s) : R. Fabbri, S. Bernardi
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 347-354
Total Pages : 8
Language : English

Abstract: Despite their lower performances compared to metallic fibres, the UHPFRC with organic fibres represent roughly 30% of the UHPFRC production. The organic fibres are mainly used for façade and furniture applications. Easier to work and with a better finishing, the organic fibres provide although a greater brittleness in tension. The design methods used for the general UHPFRC can be adapted for organic fibres in such a way to take in account the loss of strength in tension. This paper starts with a description of the differences between the mechanical behaviours of the two UHPFRC. Then it will present the design method with the “brittle approach”, in order to define the design rules. That is mostly an adaptation of the existing methods by changing the safety factors and the behaviour laws. For the aesthetic applications, we must often limit or forbid cracking in serviceability limit state. This paper will suggest the stress-strain laws for the design with or without reinforcement.

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