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首页> 外文期刊>Advances in Structural Engineering >Experimental Investigation of Reinforced Concrete T-Beams Strengthened with Steel Wire Mesh Embedded in Polymer Mortar Overlay
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Experimental Investigation of Reinforced Concrete T-Beams Strengthened with Steel Wire Mesh Embedded in Polymer Mortar Overlay

机译：埋入聚合物砂浆中的钢丝网加固钢筋混凝土T型梁的试验研究

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摘要

The application of steel wire mesh (SWM) and polymer mortar composites to the surface of reinforced concrete (RC) members as external reinforcement is a promising and recent new technique for strengthening and rehabilitating damaged concrete elements. Five one-third-scale simply supported RC T-beams were tested during this study. Four-point bending flexural tests were conducted up to failure on one control beam and on four strengthened beams with different load histories. The objectives of this investigation were to study the effectiveness of SWM and polymer mortar composites in increasing the flexural strength of concrete beams and to study the construction technology for further development. The main test parameters included the amount of longitudinal SWM reinforcement and the load history. The results demonstrate the feasibility of rehabilitating and strengthening RC members with SWM composites and indicate that the ultimate strength of RC T-beams, strengthened with SWM composites, is almost the same regardless of the load history at the time of strengthening. A design procedure is presented with aim to predict the flexural strength of T-beams strengthened with SWM composites. Good agreement between experiment and predicted values was achieved.
机译：钢丝网（SWM）和聚合物砂浆复合材料作为外部补强剂应用于钢筋混凝土（RC）构件的表面，是一种有前途的最新技术，可用于增强和修复受损的混凝土构件。在这项研究中，测试了五种三分之一比例的简支RC T型梁。在一个控制梁和四个具有不同载荷历史的加固梁上进行了四点弯曲挠曲测试，直到破坏为止。这项研究的目的是研究SWM和聚合物砂浆复合材料在提高混凝土梁抗弯强度方面的有效性，并研究进一步开发的施工技术。主要测试参数包括纵向SWM钢筋的数量和荷载历程。结果证明了用SWM复合材料修复和加固RC构件的可行性，并表明，不管加固时的载荷历史如何，用SWM复合材料增强的RC T型梁的极限强度几乎相同。提出了一种设计程序，旨在预测用SWM复合材料增强的T型梁的抗弯强度。实验与预测值之间取得了良好的一致性。

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  • 来源
    《Advances in Structural Engineering》 |2010年第1期|p.69-79|共11页
  • 作者

    Guohua Xing; Tao Wu; Boquan Liu; Hua Huang; Songlin Gu;

  • 作者单位

    School of Civil Engineering, Chang'an University, Xi'an, 710061, P.R. China;

    School of Civil Engineering, Chang'an University, Xi'an, 710061, P.R. China;

    School of Civil Engineering, Chang'an University, Xi'an, 710061, P.R. China;

    School of Civil Engineering, Chang'an University, Xi'an, 710061, P.R. China;

    Shanghai Xian Dai Construction Engineering Co. Ltd, Shanghai, 200070, P.R. China;

  • 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

    steel wire mesh; polymer mortar; T-beam; strengthening;

    机译：钢丝网;聚合物砂浆丁字梁强化;

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