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Using helices to enhance the performance of high strength concrete beams

机译：使用螺旋增强高强度混凝土梁的性能

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Beams made of high strength concrete (HSC) cannot utilise t heir full potential strength due to ductility provisions in the current design standards. However, the full strength potential and ductility can be acieved, provided certain modification techniques are adopted. This paper presents one new way of improving the structural performance of reinforced HSC beams. Exploration into the effects on strength and ductility of high strength reinforced concrete beams, through an increase in tensile reinforcement, is reviewed. The use of helical reinforcement in the compression zone of beams in order to improve ductility is proposed, in which different geometric configurations are explored. Beams of 1.2 metres span were subjected to standard flexural lading, with an emphasis placed on the mid span deflection and the plastic curvature capacity of the beams.
机译：由于当前设计标准中的延性规定，由高强度混凝土（HSC）制成的梁无法充分利用其全部潜在强度。但是，只要采用某些修改技术，就可以充分发挥强度潜力和延展性。本文提出了一种新的方法来改善钢筋混凝土HSC梁的结构性能。综述了通过增加抗拉钢筋对高强度钢筋混凝土梁的强度和延性的影响的研究。提出在梁的压缩区域中使用螺旋形钢筋以提高延展性，其中探索了不同的几何构型。对1.2米跨度的梁进行标准挠曲加载，重点放在梁的中跨挠度和塑性弯曲能力上。

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