Fibre reinforced concrete pipes: new designing trends

Author(s): A. de la Fuente, A.D. de Figueiredo, A. Aguado, C. Molins, R. Escariz
Paper category: Conference
Book title: 8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012)
Editor(s): Joaquim A.O. Barros
Print ISBN: 978-2-35158-132-2
e-ISBN: 978-2-35158-133-9
Publisher: RILEM Publications SARL
Pages: 1318 - 1330
Total Pages: 12
Language: English

The main advantages related to the use of structural fibres as main reinforcement in concrete pipes is of widespread knowledge. However, in spite of the numerous experimental campaigns carried out and published in the scientific literature, their use has not been properly consolidated. Among those reasons, the most important one is the lack of a systematic method for its design. In this respect, the type and the amount of fibres for each internal diameter (Di) and required strength class has been traditionally determined by means of the crushing test. This is a reliable method, but not efficient from an economic point of view when it is used indirectly with designing purposes, since there exist several Di, thicknesses (e) and commercial strength classes. Therefore, it is evident that there is a need for a methodology that would enable the systematic design of fibre reinforced concrete pipes (FRCPs) for any Di and strength class. In this sense, several experimental campaigns and numerical models for the analysis of FRCPs were developed in conjunction by the Universitat Politècnica de Catalunya (UPC) and the Universidade de São Paulo (USP) in order to gain knowledge about the mechanical response of this element. The aim of this work is, on the one hand, to introduce the most relevant aspects regarding the mechanical response of FRCPs and its numerical simulation by the means the developed Model for the Analysis of Pipes (MAP). On the other hand, the suitability of the MAP for the design of this type of pipes is verified by contrasting the experimental results obtained from FRCPs with Di of 600 mm, 800 mm and 1000 mm. Finally, a new design methodology based on the use of the MAP is presented. All this aspects are expected to boost the use of fibres as the main reinforcement in concrete pipes.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00

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