Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel fibre self-compacting concrete under biaxial loading
Highlights Plain and fibrous concrete were tested under three multiaxial stress state. Strength and behaviour of concrete were analysed with respect to the stress ratio. Failure modes of concrete under uniaxial and multiaxial stress state were compared. Failure criterions of concrete under multiaxial stress state were proposed.
Abstract This study involves the investigation of the effects of steel fibre content volume on the biaxial stress behaviour of steel fibre self-compacting concrete (SFSCC) at different stress ratios. This study covers compression-compression, compression-tension, and tension-tension stress regions. The results are discussed in terms of the uniaxial and biaxial strength, stress-strain relationship, and failure mode of SFSCC specimens. In terms of strength, 1.0% fibre volume fractions showed the highest increment in biaxial compression and compression-tension, which were 55% and 84%, respectively, when compared to plain concrete. This improvement was due to the integration of steel fibre. In contrast with compression strength, biaxial tension strength decreased in comparison to uniaxial tensile strength. Additionally, based on the octahedral stress space, the failure criteria of concrete for each region were proposed in a quadratic polynomial equation, and the parameters were derived from a regression analysis.
Steel fibre self-compacting concrete under biaxial loading
Highlights Plain and fibrous concrete were tested under three multiaxial stress state. Strength and behaviour of concrete were analysed with respect to the stress ratio. Failure modes of concrete under uniaxial and multiaxial stress state were compared. Failure criterions of concrete under multiaxial stress state were proposed.
Abstract This study involves the investigation of the effects of steel fibre content volume on the biaxial stress behaviour of steel fibre self-compacting concrete (SFSCC) at different stress ratios. This study covers compression-compression, compression-tension, and tension-tension stress regions. The results are discussed in terms of the uniaxial and biaxial strength, stress-strain relationship, and failure mode of SFSCC specimens. In terms of strength, 1.0% fibre volume fractions showed the highest increment in biaxial compression and compression-tension, which were 55% and 84%, respectively, when compared to plain concrete. This improvement was due to the integration of steel fibre. In contrast with compression strength, biaxial tension strength decreased in comparison to uniaxial tensile strength. Additionally, based on the octahedral stress space, the failure criteria of concrete for each region were proposed in a quadratic polynomial equation, and the parameters were derived from a regression analysis.
Steel fibre self-compacting concrete under biaxial loading
Mohamed, R.N. (Autor:in) / Zamri, N.F. (Autor:in) / Elliott, K.S. (Autor:in) / Rahman, A.B.A. (Autor:in) / Bakhary, N. (Autor:in)
Construction and Building Materials ; 224 ; 255-265
11.07.2019
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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