Abstract
Recently, the CEB-FIP Model Code 2010 (MC10) provided a fibre-reinforced concrete tension model by which to evaluate the tensile behaviour of fibre-reinforced concrete, so that the tensile contribution achieved by fibres can be acknowledged in the design of concrete structures. In this model, the tensile behaviour of fibre-reinforced concrete is evaluated using a bending test of fibre-reinforced concrete beams with a notch, but there are still some deficiencies. For example, the effect of fibre type on the tensile behaviour is not considered. In this paper, therefore, the fibre-reinforced concrete tension model in MC10 has been re-evaluated, focused on the effect of fibre type. From the tensile behaviour of fibre-reinforced concrete predicted by the simplified diverse embedment model, fibre-reinforced concrete beams were analysed to derive the tensile behaviour of fibre-reinforced concrete by following the procedure presented in MC10. From comparison of the predictions with test results, it was determined that MC10 underestimates the tensile stress due to end-hooked fibres; while it overestimated the tensile stress due to straight fibres, when crack width was relatively small. Therefore, it can be concluded that the fibre-reinforced concrete tension model in MC10 can be improved by considering the effect of fibre type.
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