The structural behaviour of steel-fibre-reinforced concrete beams was studied using non-linear finite-element analysisudand existing experimental data. The work aim was to examine the potential of using steel fibres to reduce theudamount of conventional transverse steel reinforcement without compromising ductility and strength requirements setudout in design codes. To achieve this, the spacing between shear links was increased while steel fibres were added as audsubstitute. Parametric studies were subsequently carried out and comparisons were also made with BS EN 1992-1-1udpredictions. It was concluded that the addition of steel fibres enhanced the load-carrying capacity and also alteredudthe failure mode from a brittle shear mode to a flexural ductile one. The provision of fibres also improved ductility.udHowever, interestingly it was found that adding excessive amounts of fibres led to a less-ductile response. Overall,udthe study confirmed the potential for fibres to compensate for a reduction in conventional shear reinforcement.
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机译：利用非线性有限元分析和现有的试验数据，研究了钢纤维混凝土梁的结构性能。工作目的是研究使用钢纤维减少常规横向钢筋的数量，同时又不影响设计规范中规定的延展性和强度要求的潜力。为了达到这个目的，增加了剪切连接点之间的间距，同时添加了钢纤维作为替代物。随后进行了参数研究，并与BS EN 1992-1-1 uddictictions进行了比较。结论是，钢纤维的添加增强了承载能力，并且还将破坏模式从脆性剪切模式改变为挠性延性模式。提供纤维还改善了延展性。 ud然而，有趣的是，发现添加过量的纤维导致较低的延展性响应。总体而言，该研究证实了纤维有潜力弥补传统抗剪增强的不足。
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