Predicting the flexural response of steel fibre reinforced concrete prisms using a sectional model |
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| Affiliation: | 1. Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, The University of New South Wales, Australia;2. School Civil and Environmental Engineering, The University of New South Wales, Australia;1. Civil Engineering Department, COPPE, Universidade Federal do Rio de Janeiro, P.O. Box 68506, Rio de Janeiro, RJ CEP 21941-972, Brazil;2. Department of Civil Engineering, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225 – Gávea, Rio de Janeiro, RJ 22451-900, Brazil;1. Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;2. Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;3. Department of Railroad Construction and Safety Engineering, Dongyang University, 36040 Yeongju, Republic of Korea;4. Faculty of Technology and Engineering, Department of Civil Engineering, East of Guilan, University of Guilan, Rudsar, Vajargah, Iran;5. School of Agricultural Computational and Environmental Sciences, Centre for Sustainable Agricultural Systems, Institute of Life Science and the Environment, University of Southern Queensland, Springfield, QLD 4300, Australia |
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| Abstract: | The material characterisation of steel fibre reinforced concrete (SFRC) continues to be an ongoing topic of debate in the scientific community. When designing a structural element made of SFRC, its defining characteristic is its post-cracking residual tensile strength. Theoretically, a uniaxial tension test is the ideal test in gathering these parameters; however these tests are expensive in time and testing. Consequently, much effort has been placed on inferring the post-cracking properties of SFRC from simpler tests, such as a notched prism in bending. In this paper, the sectional analysis procedure of Zhang and Stang (1998) is adapted with the inclusion of the variable engagement model to describe SFRC in tension. The model is shown to accurately capture the load–deformation characteristics of the tested specimens and allows for the explicit identification of the components resisting load. |
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| Keywords: | Steel fibre Concrete Material characterisation Inverse analysis Sectional analysis Bending Uniaxial tension |
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