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Pro087

Characterization of rebars anchorage in UHPC



Author(s): E. Fehling, P. Lorenz
Paper category: Symposium
Book title: RILEM-fib-AFGC International Symposium on Ultra-High Performance Fibre-Reinforced Concrete
Editor(s): F. Toutlemonde, J. Resplendino
Print ISBN: 978-2-35158-130-8
e-ISBN: 978-2-35158-131-5
Publisher: RILEM Publications S.A.R.L
Pages: 587 – 596
Total Pages: 10
Language: English


Abstract: 
To understand the behaviour of reinforced ultra high performance concrete structures, it is important to understand the bond behaviour of rebars in UHPC. Therefore test series were conducted to determine the influence of the main parameters, especially to get basic information for the development of design rules for anchorage of rebars in UHPC. Due to the filigree character of UHPC structures the concrete cover and the mode of failure are the main parameters in these investigations. If fibres are added, it is important to know how they influence the bond behaviour and if they can replace a transverse reinforcement. The anchorage specimens showed different failure modes as well as combinations thereof. The results will be compared with those of pull-out tests to weigh the respective parameters. The main objective is to determine the necessary anchorage length of non-prestressed rebars in fine grained UHPFRC for practical dimensions of building members used in the construction industry subject to the parameters concrete cover and fibre efficiency.


Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00