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首页> 外文期刊>Magazine of Concrete Research >Modelling the tension stiffening effect in SFR-RC
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Modelling the tension stiffening effect in SFR-RC

机译：在SFR-RC中模拟拉伸刚度效果

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摘要

The understanding of the performance and cracking behaviour of steel fibre reinforced concrete (SFRC) has developed greatly in recent times. Many of these studies, however, are limited to SFRC without conventional reinforcement. This paper reports on the tensile behaviour of SFRC members co-reinforced with conventional reinforcing bars (SFR-RC). A physical description of the behaviour of the specimens is presented and an analytical model is derived. The model adopts the load-sharing concept between the tensile stresses resisted by the steel fibres and the steel reinforcing bar as well as the bond between the concrete and reinforcing bar to the tension stiffening effect of these members. The model is founded upon a previously reported tension chord model and allows for explicit identification of the three components to the tension stiffening effect. An experimental programme is reported here and the model is shown to correlate well with the experimental data and test data reported elsewhere.
机译：近年来，人们对钢纤维增强混凝土（SFRC）的性能和开裂行为的认识有了很大发展。但是，这些研究中有许多仅限于没有常规加固的SFRC。本文报道了与传统钢筋（SFR-RC）共同增强的SFRC构件的拉伸性能。给出了样品行为的物理描述，并导出了分析模型。该模型在钢纤维和钢筋之间承受的拉应力之间以及混凝土与钢筋之间的粘结对这些构件的抗拉刚度之间采用了负载分担的概念。该模型建立在先前报告的拉力弦模型的基础上，并可以明确识别出三个部分对拉力的影响。这里报告了一个实验程序，并且该模型显示与其他地方报告的实验数据和测试数据具有很好的相关性。

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  • 来源
    《Magazine of Concrete Research》 |2016年第8期|339-352|共14页
  • 作者

    Amin Ali; Foster Stephen James; Watts Murray;

  • 作者单位

    Univ New S Wales, Sch Civil & Environm Engn, Ctr Infrastruct Engn & Safety, Sydney, NSW, Australia;

    Univ New S Wales, Sch Civil & Environm Engn, Sydney, NSW, Australia;

    Univ New S Wales, Sch Civil & Environm Engn, Ctr Infrastruct Engn & Safety, Sydney, NSW, Australia;

  • 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
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