Computers and Concrete

  • 제4권5호
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  • Pages.403-424
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  • 2007
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Corrosion effects on tension stiffening behavior of reinforced concrete

  • Shayanfar, M.A. (Civil Engineering Department, Iran University of Science and Technology) ;
  • Ghalehnovi, M. (Civil Engineering Department, Iran University of Science and Technology) ;
  • Safiey, A. (Civil Department, Moshanir Power Engineering Consultants)
  • 투고 : 2007.01.10
  • 심사 : 2007.08.26
  • 발행 : 2007.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

The investigation of corrosion effects on the tensile behavior of reinforced concrete (RC) members is very important in region prone to high corrosion conditions. In this article, an experimental study concerning corrosion effects on tensile behavior of RC members is presented. For this purpose, a comprehensive experimental program including 58 cylindrical reinforced concrete specimens under various levels of corrosion is conducted. Some of the specimens (44) are located in large tub containing water and salt (5% salt solution); an electrical supplier has been utilized for the accelerated corrosion program. Afterwards, the tensile behavior of the specimens was studied by means of the direct tension tests. For each specimen, the tension stiffening curve is plotted, and their behavior at various load levels is investigated. Average crack spacing, loss of cross-section area due to corrosion, the concrete contribution to the tensile response for different strain levels, and maximum bond stress developed at each corrosion level are studied, and their appropriate relationships are proposed. The main parameters considered in this investigation are: degree of corrosion ($C_w$), reinforcement diameter (d), reinforcement ratio (${\rho}$), clear concrete cover (c), ratio of clear concrete cover to rebar diameter (c/d), and ratio of rebar diameter to reinforcement percentage ($d/{\rho}$).

키워드

참고문헌

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피인용 문헌

  1. Carbonation-Induced and Chloride-Induced Corrosion in Reinforced Concrete Structures vol.27, pp.9, 2015, https://doi.org/10.1061/(ASCE)MT.1943-5533.0001209
  2. Effect of longitudinal rebar corrosion on the compressive strength reduction of concrete in reinforced concrete structure vol.19, pp.6, 2016, https://doi.org/10.1177/1369433216630367
  3. Structural performance assessment of deteriorated reinforced concrete bridge piers vol.14, pp.4, 2014, https://doi.org/10.12989/cac.2014.14.4.387
  4. Hypoelastic modeling of reinforced concrete walls vol.5, pp.3, 2008, https://doi.org/10.12989/cac.2008.5.3.195
  5. Post-cracking behavior of UHPC on the concrete members reinforced by steel rebar vol.18, pp.1, 2016, https://doi.org/10.12989/cac.2016.18.1.139
  6. A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams pp.0889-3241, 2019, https://doi.org/10.14359/51706919
  7. Beams affected by corrosion influence of reinforcement placement in the cracking vol.37, pp.2, 2007, https://doi.org/10.12989/sem.2011.37.2.163
  8. Statistical Approach to Modeling Reduced Shear Capacity of Corrosion-Damaged Reinforced Concrete Beams vol.26, pp.2, 2007, https://doi.org/10.1061/(asce)sc.1943-5576.0000564
  9. Influence of chloride corrosion on tension capacity of rebars vol.28, pp.10, 2021, https://doi.org/10.1007/s11771-021-4834-3