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Materials and Structures

, Volume 49, Issue 12, pp 4959–4973 | Cite as

Structural effects of steel reinforcement corrosion on statically indeterminate reinforced concrete members

  • Ignasi Fernandez
  • Manuel F. Herrador
  • Antonio R. Marí
  • Jesús Miguel Bairán
Original Article

Abstract

Steel corrosion in reinforced concrete structures produces loss of reinforcement area and damage in the surrounding concrete. As a consequence, increases in deflections, crack widths and stresses may take place, as well as a reduction of the bearing capacity, which depends on the structural scheme and redundancy. In this paper an experimental study of twelve statically indeterminate beams subjected to different levels of forced reinforcement corrosion is presented. Different sustained loads were applied during the corrosion phase to assess their influence on the effects of corrosion. An important increase in deflections was registered in all corroded beams, especially in those subject to higher load levels. It was also found that the rate of corrosion was affected by the load level. Internal forces redistributions due to induced damage were measured. Finally, the experimental results were compared with those predicted by a non-linear time-dependent segmental analysis model developed by the authors, obtaining in general good agreement.

Keywords

Statically indeterminate beam Reinforced concrete Steel corrosion Redistribution 

Notes

Acknowledgments

The authors wish to acknowledge the financial support of The Ministry of Economy and Competitiveness of the Government of Spain (MINECO) for providing funds for project BIA2009-11764 and the European Regional Development Funds (ERDF). The financial support of Infrastructures de Catalunya (ICAT) is also highly appreciated.

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Copyright information

© RILEM 2016

Authors and Affiliations

  1. 1.Department of Construction EngineeringPolytechnic University of CataloniaBarcelonaSpain
  2. 2.Department of Construction TechnologyUniversidade da CoruñaA CoruñaSpain

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