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Components of compression splice resistances in high-strength concrete

机译:高强度混凝土抗压接的组成

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摘要

To investigate the development of compression splice resistances, compression splices under normal conditions, splices with bond only and splices with bearing only were tested. The bond and bearing strengths of the normal splices were found to be less than those of splices with bond only and splices with bearing only, respectively, because in the normal splices the circumferential tensile stresses induced by bearing and bond overlapped at the ends of the splice length. However, the strengths of the normal splices are always higher than the strengths of the bond only or bearing only splices because the normal splices exhibit less slip compared to the bond only or bearing only splices at the same level of bar stress. Consequently, the splice strength in compression cannot be improved by removing either the bond or the bearing. In addition, the bond strength in the bond only splices is nearly the same as the bond strength in tension splices.
机译:为了研究抗压接点的发展,测试了正常条件下的抗压接点,仅具有键的接点和仅具有轴承的接点。发现普通接头的粘结强度和承受强度分别低于仅具有粘结的接头和仅具有支承的接头,因为在普通接头中,由支承和粘结引起的周向拉应力在接头的两端重叠长度。但是,正常接头的强度始终高于仅粘结接头或仅承受接头的强度,因为与仅粘结接头或仅承受相同杆应力的接头相比,正常接头显示的滑移较小。因此,不能通过去除粘结或轴承来提高压缩时的接合强度。此外,仅粘接接头中的粘接强度与拉伸接头中的粘接强度几乎相同。

著录项

  • 来源
    《Magazine of Concrete Research》 |2017年第10期|502-511|共10页
  • 作者

    Chun Sungchul;

  • 作者单位

    Incheon Natl Univ, Div Architecture & Urban Design, Incheon, South Korea;

  • 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; failure; enforcement;

    机译:债券;失败;执行;

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