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首页> 外文期刊>Magazine of Concrete Research >Towards innovative FRP fabric reinforcement in concrete beams: concrete-CFRP bond
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Towards innovative FRP fabric reinforcement in concrete beams: concrete-CFRP bond

机译：致力于在混凝土梁中进行创新的FRP织物增强：混凝土-CFRP粘结

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摘要

The paper reports results of an experimental investigation into load response and failure behaviour of rectangular prismatic concrete beams reinforced with a combined flexural and shear reinforcement system made from carbon-fibre-reinforced polymer (CFRP) fabric. It is shown that CFRP U-channels with aggregate coating and an anchorage system consisting of a lipped channel section with intermittent closed loops were found to provide improved composite action between the CFRP reinforcement and concrete. These CFRP channels also ensured adequate strength and ductility before failure. Possible modes of failure of the beams are discussed, as is the effect of the design parameters on the failure mode and the failure load. It is anticipated that the findings of this paper could be effectively used in other applications such as non-prismatic concrete geometries and as permanent formwork/reinforcement in thin concrete members where the flexible characteristics of dry CFRP fabrics are most useful.
机译：本文报道了对碳纤维增强聚合物（CFRP）织物制成的组合抗弯和抗剪增强体系的矩形棱柱混凝土梁的荷载响应和破坏行为的实验研究结果。结果表明，发现具有骨料涂层的CFRP U型槽和由具有间歇性闭环的唇形槽部分组成的锚固系统可改善CFRP钢筋和混凝土之间的复合作用。这些CFRP通道在失效前也确保了足够的强度和延展性。讨论了梁失效的可能模式，以及设计参数对失效模式和失效载荷的影响。可以预期，本文的研究结果可以有效地用于其他应用中，例如非棱柱混凝土的几何形状，以及用作薄混凝土构件的永久模板/钢筋，其中干式CFRP织物的柔韧性最有用。

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  • 来源
    《Magazine of Concrete Research》 |2018年第16期|785-797|共13页
  • 作者

  • 作者单位

    Univ Southampton Fac Engn & Environm Southampton Hants England;

    Univ Warwick Sch Engn Coventry W Midlands England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bond; composite materials; reinforcement;

    机译：键;复合材料;加强;

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