A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Structural Behaviour of Steel-Fibre-Reinforced Lightweight Concrete
This paper evaluates the influence of adding hooked-end 3D fibres to recycled lightweight concrete beams with and without shear reinforcement. Lightweight concrete used is from recycled fly ash and can lead to reductions in the mass of the structure. However, it is typically more brittle than normal weight concrete. To enhance ductility, steel fibres were used and the complete and partial substitution of stirrups with fibres was investigated. The flexural and shear behaviour of SFRLC beams under 3-point loading with adequate, substandard and no shear reinforcement are studied. The experimental study includes Vf = 0%, 1% and 2% as well as stirrups spacing of 120 mm, 240 mm and ∞. The results in this paper are given in terms of strength, ductility, crack patterns and nature of failure. It was found out that fibre reinforcement is capable of partially replacing stirrups, however, when stirrups were completely removed the failure became brittle. Nonlinear finite element analysis (NLFEA) using ABAQUS is also used to validate a SFRLC constitutive model whose properties were derived from compressive and pullout-tests.
Structural Behaviour of Steel-Fibre-Reinforced Lightweight Concrete
This paper evaluates the influence of adding hooked-end 3D fibres to recycled lightweight concrete beams with and without shear reinforcement. Lightweight concrete used is from recycled fly ash and can lead to reductions in the mass of the structure. However, it is typically more brittle than normal weight concrete. To enhance ductility, steel fibres were used and the complete and partial substitution of stirrups with fibres was investigated. The flexural and shear behaviour of SFRLC beams under 3-point loading with adequate, substandard and no shear reinforcement are studied. The experimental study includes Vf = 0%, 1% and 2% as well as stirrups spacing of 120 mm, 240 mm and ∞. The results in this paper are given in terms of strength, ductility, crack patterns and nature of failure. It was found out that fibre reinforcement is capable of partially replacing stirrups, however, when stirrups were completely removed the failure became brittle. Nonlinear finite element analysis (NLFEA) using ABAQUS is also used to validate a SFRLC constitutive model whose properties were derived from compressive and pullout-tests.
Structural Behaviour of Steel-Fibre-Reinforced Lightweight Concrete
RILEM Bookseries
Serna, Pedro (editor) / Llano-Torre, Aitor (editor) / Martí-Vargas, José R. (editor) / Navarro-Gregori, Juan (editor) / Al-Naimi, Hasanain K. (author) / Abbas, Ali A. (author)
RILEM-fib International Symposium on Fibre Reinforced Concrete ; 2020 ; Valencia, Spain
Fibre Reinforced Concrete: Improvements and Innovations ; Chapter: 65 ; 730-744
RILEM Bookseries ; 30
2020-11-05
15 pages
Article/Chapter (Book)
Electronic Resource
English
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