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Fatigue defect of layer steel fiber reinforced concrete

  • Chen Ying-bo
  • Lu Zhe-an
  • Huang Da
Article

Abstract

An experimental study is carried out on fatigue defect of layer steel fiber reinforced concrete (LSFRC). Based on experimental data, the various relation curves are given corresponding to different stress levels 0.9, 0.85, and 0.8. Furthermore, the fatigue defect degree is defined, and the strain-cycle ratio-equations and defect-cycle ratio equations with the correlation coefficients very close to 1, are regressed in terms of the cubic polynomial, of which the fittings are preferable. In addition, the results show that the fatigue defect of LSRC presents three-phase development regularity too. And in comparison with the plain concrete, the third phase of the fatigue defect of LSFRC is longer, therefore the fatigue failure of LSFRC is more ductile. The mechanism of the fatigue defect is discussed too.

Key words

LSFRC fatigue fatigue defect degree fatigue defect equation 

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References

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    Deng Zongcai. An Experimental Study on Constant and Variable Amplitude Fatigue Characteristics of Steel Fiber Reinforced Concrete,Journal of Shandong Academic of Building Material, 2000, 4(1)Google Scholar
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    Zhao guofan, Peng Shaoming. Structure of Steel Fiber Reinforced Concrete,Architecture and Industry of China, 2000Google Scholar

Copyright information

© Wuhan University of Technology 2003

Authors and Affiliations

  • Chen Ying-bo
    • 1
  • Lu Zhe-an
    • 1
  • Huang Da
    • 1
  1. 1.Design and Research InstituteWuhan University of TechnologyWuhanChina

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