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Non-linear Finite Element Analysis of Steel Fibre Reinforced Beams with Conventional Reinforcement

David Fall (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Rasmus Rempling (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Anette Jansson (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Karin Lundgren (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Kent Gylltoft (Institutionen för bygg- och miljöteknik, Konstruktionsteknik)
8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012) p. 1033-1045. (2012)
[Konferensbidrag, refereegranskat]

The purpose of this study has been to investigate the behavior of elements reinforced with both conventional steel reinforcement and steel fibres in order to support future applications of such composites. Three beams of varying fibre content were tested in four-point bending. The results were then compared with results from nonlinear FE-analyses and the calculation method suggested in fib Model Code 2010. The beams were a part of a larger experimental programme where relevant properties were investigated in uniaxial tension tests and pull-out tests. The FE-modeling was performed using a two dimensional plane stress model. General agreement between experiments and the FE-analyses was obtained with regard to load-displacement behavior. The crack patterns from the FE-analysis and experiments agreed in general, although the crack patterns in the analysis were more distributed close to the reinforcement. Crack localization was enhanced by modifying the bond-slip behavior to include the bond loss at yielding. Calculations in accordance with fib Model Code 2010 yield conservative results in comparison with both experiments and FE-analysis.



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Denna post skapades 2013-03-25. Senast ändrad 2015-03-19.
CPL Pubid: 174996

 

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Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Konstruktionsteknik (2005-2017)

Ämnesområden

Building Futures
Materialvetenskap
Samhällsbyggnadsteknik
Annan samhällsbyggnadsteknik

Chalmers infrastruktur

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Steel Fibres in Reinforced Concrete Structures of Complex Shapes: Structural Behaviour and Design Perspectives