Abstract
The fiber pull-out response of a steel fiber, both straight and end-hooked, embedded in a concrete matrix has been widely investigated in the past. Attention was given to the influence of the type of fiber, the concrete strength and the inclination of the pull-out force. Hooked-end fibers need more energy to be pulled out of the concrete and thus are preferably used in steel fiber reinforced concrete (SFRC) for structural purposes.
Based on this single fiber pull-out behavior, numerous analytical and numerical methods were verified with experimental results of three- or four-point bending tests on small prisms. In this paper, a new approach to characterize the non-linear bending behavior of steel fiber reinforced concrete is proposed. Finite element (FE) analyses were conducted on a small prism-model, containing randomly generated small embedded reinforcement elements, which material properties are based on the pull-out behavior derived from earlier research activities. In this stage, attention was also given to the orientation of the fibers.
Eventually, a good correlation was found between the numerical and experimental results and the fine-tuned model was then used to perform a large number of numerical bending tests. In that way, the scatter of the parameters that describe the non-linear bending behavior of small steel fiber reinforced concrete prisms was estimated in a much faster way than by experimental testing. These parameters are usually needed to evaluate the structural behavior of SFRC elements according to current design guidelines for SFRC.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Naaman, A.E., Shah, S.P.: Pull-out Mechanism in Steel Fiber-Reinforced Concrete. Proc. ASCE, Journal of the Structural Division 102(ST 8), 1537–1548 (1976)
Stang, H., Li, Z., Shah, S.P.: Pull-out Problem: Stress versus Fracture Mechanical Approach. Journal of Engineering Mechanics, ASCE 116(10), 2136–2150 (1990)
Van Gysel, A.: A pullout model for hooked end steel fibres. In: Reinhardt, H.W., Naaman, A.E. (eds.) 3th RILEM Workshop on HPFRCC, pp. 351–359 (1999)
Taerwe, L., Van Gysel, A.: Influence of steel fibres on design stress-strain curve for high-strength concrete. ASCE Journal of Engineering Mechanics 122(8), 695–704 (1996)
Stroeven, P., de Haan, Y.M., Bouter, C., Shah, S.P.: Pull-out Tests of Steel Fibres. In: Swamy, R.N. (ed.) Testing and Test Methods of Fiber Cement Composites, pp. 345–353. The Construction Press, UK (1978)
Chanvillard, G., Aïtcin, P.-C.: On the Modelling of the Pull-out Behaviour of Steel Fibers. In: Reinhardten, H.W., Naaman, A.E. (eds.) High Performance Fiber Reinforced Cement Composites, pp. 388–406. RILEM Proceedings 15, E & FN Spon, London (1992)
Naaman, A.E., Najm, H.: Bond-Slip Mechanisms of Steel Fibers in Concrete. ACI Materials Journal 88(2), 135–145 (1991)
Van Gysel, A.: Studie van het uittrekgedrag van staalvezels ingebed in een cementgebonden matrix met toepasing op staalvezelbeton onderworpen aan buiging (in Dutch), PhD thesis, Magnel Laboratory for concrete research, Ghent University, Belgium (2000)
Jansson, A.: Analysis and design methods for fibre reinforced concrete: a state-of-the-art report. In: Dep. of Civil & Environmental Engineering, Div. of Structural Engineering/Concrete structures, vol. 16, p. 196. Chalmers University of Technology, Göteborg (2007)
Laranjeira, F., Grünewald, S., Walraven, J., et al.: Characterization of the orientation profile of steel fiber reinforced concrete. Materials and Structures, RILEM, 1–19 (November 2010)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2012 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Soetens, T., Matthys, S., Taerwe, L., Van Gysel, A. (2012). Basis of a Finite-Element Simulation Tool to Predict the Flexural Behavior of SFRC Prisms. In: Parra-Montesinos, G.J., Reinhardt, H.W., Naaman, A.E. (eds) High Performance Fiber Reinforced Cement Composites 6. RILEM State of the Art Reports, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2436-5_12
Download citation
DOI: https://doi.org/10.1007/978-94-007-2436-5_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-2435-8
Online ISBN: 978-94-007-2436-5
eBook Packages: EngineeringEngineering (R0)