Structural Engineering and Mechanics

  • 제17권6호
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  • Pages.863-878
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  • 2004
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Bond strength modeling for corroded reinforcement in reinforced concrete

  • Wang, Xiaohui (Department of Civil Engineering, Shanghai Jiaotong University) ;
  • Liu, Xila (Department of Civil Engineering, Shanghai Jiaotong University)
  • 투고 : 2002.10.23
  • 심사 : 2003.12.10
  • 발행 : 2004.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

Steel corrosion in reinforced concrete structures leads to concrete cover cracking, reduction of bond strength, and reduction of steel cross section. Among theses consequences mentioned, reduction of bond strength between reinforcement and concrete is of great importance to study the behaviour of RC members with corroded reinforcement. In this paper, firstly, an analytical model based on smeared cracking and average stress-strain relationship of concrete in tension is proposed to evaluate the maximum bursting pressure development in the cover concrete for noncorroded bar. Secondly, the internal pressure caused by the expansion of the corrosion products is evaluated by treating the cracked concrete as an orthotropic material. Finally, bond strength for corroded reinforcing bar is calculated and compared with test results.

키워드

참고문헌

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피인용 문헌

  1. Four levels to assess anchorage capacity of corroded reinforcement in concrete vol.147, 2017, https://doi.org/10.1016/j.engstruct.2017.06.024
  2. Model for Flexural Strength Calculation of Corroded RC Beams Considering Bond–Slip Behavior vol.142, pp.7, 2016, https://doi.org/10.1061/(ASCE)EM.1943-7889.0001079
  3. Simplified Model for Corrosion-Induced Bond Degradation between Steel Strand and Concrete vol.29, pp.4, 2017, https://doi.org/10.1061/(ASCE)MT.1943-5533.0001784
  4. Bond Degradation–Induced Incompatible Strain between Steel Bars and Concrete in Corroded RC Beams vol.30, pp.6, 2016, https://doi.org/10.1061/(ASCE)CF.1943-5509.0000921
  5. Investigating correlations between crack width, corrosion level and anchorage capacity vol.13, pp.10, 2017, https://doi.org/10.1080/15732479.2016.1263673
  6. Probabilistic bond strength model for reinforcement bar in concrete vol.61, pp.None, 2020, https://doi.org/10.1016/j.probengmech.2020.103079
  7. Bond strength prediction of spliced GFRP bars in concrete beams using soft computing methods vol.27, pp.4, 2004, https://doi.org/10.12989/cac.2021.27.4.305
  8. Seismic fracture analysis of concrete arch dams incorporating the loading rate dependent size effect of concrete vol.79, pp.2, 2021, https://doi.org/10.12989/sem.2021.79.2.169
  9. Theoretical and practical models for shear strength of corroded reinforced concrete columns vol.79, pp.5, 2004, https://doi.org/10.12989/sem.2021.79.5.565