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首页> 外文期刊>Magazine of Concrete Research >Hybrid effect of fibre mesh and short fibres on the biaxial bending behaviour of TRC
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Hybrid effect of fibre mesh and short fibres on the biaxial bending behaviour of TRC

机译：纤维网和短纤维对TRC双轴弯曲行为的混合效应

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摘要

Textile mesh-reinforced concrete (TRC) and mortar have been studied in recent years. However, current testing methods are focused on simply supported members under uniaxial bending; these are inadequate for analysis of a biaxially tensioned fibre mesh and incapable of revealing the biaxial behaviour of a TRC panel. Moreover, the fibres can be damaged by the alkalinity of concrete. To overcome this inadequacy, a series experiment of two-way panels is carried out. The methodology used here consists of the experiment and analysis of experimental data, including evaluation of the alkali resistance, biaxial bending capacity and toughness of two-way slabs. Suitable fibres are selected based on alkali resistance; the effect of fibre meshes on the biaxial bending capacity of the two-way TRC slabs is studied. By addressing the disadvantages of brittle fibre mesh-reinforced concrete compared with conventional reinforced-concrete panels, a significant improvement in the ductility of a TRC panel with steel fibres is achieved. Following the analysis of the experimental data, it can be concluded that a conventional steel mesh with reinforcement ratio of 0 . 2% can be replaced by a combination of glass or basalt fibre mesh and steel fibres.
机译：近年来，已经研究了纺织网状钢筋混凝土（TRC）和砂浆。然而，当前的测试方法集中在单轴弯曲下的简单支撑构件上。这些不足以分析双轴张紧的纤维网，并且无法揭示TRC面板的双轴行为。而且，纤维会被混凝土的碱度破坏。为了克服这种不足，进行了双向面板的一系列实验。这里使用的方法包括实验和实验数据分析，包括评估双向板的耐碱性，双轴弯曲能力和韧性。根据耐碱性来选择合适的纤维；研究了纤维网对双向TRC平板双轴弯曲能力的影响。与传统的钢筋混凝土板相比，通过解决脆性纤维网状混凝土的缺点，可以显着改善含钢纤维的TRC板的延展性。通过对实验数据的分析，可以得出结论，传统的钢筋网比例为0的钢网。 2％的玻璃或玄武岩纤维网和钢纤维可以代替。

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  • 来源
    《Magazine of Concrete Research》 |2019年第16期|869-880|共12页
  • 作者

    Li Dong; Ding Yining; Wang Qing; Zhang Yongchao; Azevedo Cecilia; Zhang Yulin;

  • 作者单位

    Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China;

    Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China;

    State Grid Henan Econ Res Inst, Zhengzhou, Henan, Peoples R China;

    Henan Elect Transmiss & Transformat Co, Zhengzhou, Henan, Peoples R China;

    Univ Minho, Ctr Math, Braga, Portugal;

    Univ Minho, Ctr Math, Braga, Portugal;

  • 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

    reinforcement; slabs plates; toughness;

    机译：增强;平板和板材;韧性;

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