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Reliability Analysis of Corroded Reinforced Concrete Beam with regards to Anchorage Failure

Blomfors, Mattias; Honfi, Daniel; Larsson Ivanov, Oskar LU ; Lundgren, Karin and Zandi, Kamyab (2018) Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018) p.337-344
Abstract
Reinforcement corrosion is a common problem in reinforced concrete infrastructure today, and it is expected to increase in the future. To simply replace the corroded structures with new ones requires large resources, both in financial and environmental terms. Therefore it is important that existing structures are used to their full potential, also after the onset of corrosion. This paper presents a reliability study of the anchorage capacity of a reinforced concrete beam including reinforcement corrosion. The sensitivity of the different input parameters is also studied. As expected, the results show that the reliability is reduced with corrosion; the magni- tude depends to a large extent on the modelling uncertainty used for the bond... (More)
Reinforcement corrosion is a common problem in reinforced concrete infrastructure today, and it is expected to increase in the future. To simply replace the corroded structures with new ones requires large resources, both in financial and environmental terms. Therefore it is important that existing structures are used to their full potential, also after the onset of corrosion. This paper presents a reliability study of the anchorage capacity of a reinforced concrete beam including reinforcement corrosion. The sensitivity of the different input parameters is also studied. As expected, the results show that the reliability is reduced with corrosion; the magni- tude depends to a large extent on the modelling uncertainty used for the bond model for corroded reinforcement. The sensitivity analysis shows an influence of corrosion also on the sensitivities of the input parameters, which is expected based on the properties of the underlying bond model. This paper demonstrates that probabilistic evaluations give valuable insight of the reliability, which can be used to prolong the service-life of existing infrastructure and save both money and the environment. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
The Sixth International Symposium on Life-Cycle Civil Engineering
editor
Caspeele, Robby; Taerwe, Luc; Frangopol, Dan; ; and
pages
337 - 344
publisher
CRC Press
conference name
Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018)
conference location
Ghent, Belgium
conference dates
2018-10-28 - 2018-10-31
ISBN
9781351857574
language
English
LU publication?
yes
id
ca371e20-4d9f-4f65-a7c5-a73fa36d4988
date added to LUP
2019-04-16 09:24:34
date last changed
2019-04-17 13:51:52
@inproceedings{ca371e20-4d9f-4f65-a7c5-a73fa36d4988,
  abstract     = {Reinforcement corrosion is a common problem in reinforced concrete infrastructure today, and it is expected to increase in the future. To simply replace the corroded structures with new ones requires large resources, both in financial and environmental terms. Therefore it is important that existing structures are used to their full potential, also after the onset of corrosion. This paper presents a reliability study of the anchorage capacity of a reinforced concrete beam including reinforcement corrosion. The sensitivity of the different input parameters is also studied. As expected, the results show that the reliability is reduced with corrosion; the magni- tude depends to a large extent on the modelling uncertainty used for the bond model for corroded reinforcement. The sensitivity analysis shows an influence of corrosion also on the sensitivities of the input parameters, which is expected based on the properties of the underlying bond model. This paper demonstrates that probabilistic evaluations give valuable insight of the reliability, which can be used to prolong the service-life of existing infrastructure and save both money and the environment. },
  author       = {Blomfors, Mattias and Honfi, Daniel and Larsson Ivanov, Oskar and Lundgren, Karin and Zandi, Kamyab},
  editor       = {Caspeele, Robby and Taerwe, Luc and Frangopol, Dan},
  isbn         = {9781351857574 },
  language     = {eng},
  location     = {Ghent, Belgium},
  pages        = {337--344},
  publisher    = {CRC Press},
  title        = {Reliability Analysis of Corroded Reinforced Concrete Beam with regards to Anchorage Failure},
  year         = {2018},
}