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Engineering Assessment Method for Anchorage in Corroded Reinforced Concrete

Blomfors, Mattias; Zandi, Kamyab; Lundgren, Karin; Larsson, Oskar LU and Honfi, Daniel (2016) 19th IABSE Congress Stockholm 2016 In IABSE Congress Stockholm, 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment2016 p.2109-2116
Abstract
There is an increasing need for reliable methods to assess load-carrying capacity and remaining service life of existing infrastructure. Several previous research projects have resulted in a verified, simple 1D model for assessment of anchorage in corroded reinforced concrete structures. Previous verification has involved both experiments and detailed 3D NLFE analyses. To further develop the 1D model it needs to be extended to comprise more practical situations. In order to facilitate an efficient extension procedure in the future, the size of 3D NLFE model that is required to capture the bond behaviour between corroded reinforcement and concrete is investigated. Beam-end models and models of sub-sections were studied, and the results in... (More)
There is an increasing need for reliable methods to assess load-carrying capacity and remaining service life of existing infrastructure. Several previous research projects have resulted in a verified, simple 1D model for assessment of anchorage in corroded reinforced concrete structures. Previous verification has involved both experiments and detailed 3D NLFE analyses. To further develop the 1D model it needs to be extended to comprise more practical situations. In order to facilitate an efficient extension procedure in the future, the size of 3D NLFE model that is required to capture the bond behaviour between corroded reinforcement and concrete is investigated. Beam-end models and models of sub-sections were studied, and the results in terms of bond stress and crack pattern were compared. Preliminary results indicate good agreement for some situations; however for some cases a section model seems to overestimate the capacity. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
IABSE Congress Stockholm, 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment2016
pages
2109 - 2116
publisher
IABSE, International Association for Bridge and Structural Engineering
conference name
19th IABSE Congress Stockholm 2016
external identifiers
  • scopus:85018960322
ISBN
978-385748144-4
language
English
LU publication?
yes
id
311b9f59-cd09-4a7f-8f23-ba390c7cd0db
date added to LUP
2017-04-21 13:31:13
date last changed
2017-11-14 09:54:11
@inproceedings{311b9f59-cd09-4a7f-8f23-ba390c7cd0db,
  abstract     = {There is an increasing need for reliable methods to assess load-carrying capacity and remaining service life of existing infrastructure. Several previous research projects have resulted in a verified, simple 1D model for assessment of anchorage in corroded reinforced concrete structures. Previous verification has involved both experiments and detailed 3D NLFE analyses. To further develop the 1D model it needs to be extended to comprise more practical situations. In order to facilitate an efficient extension procedure in the future, the size of 3D NLFE model that is required to capture the bond behaviour between corroded reinforcement and concrete is investigated. Beam-end models and models of sub-sections were studied, and the results in terms of bond stress and crack pattern were compared. Preliminary results indicate good agreement for some situations; however for some cases a section model seems to overestimate the capacity.},
  author       = {Blomfors, Mattias and Zandi, Kamyab and Lundgren, Karin and Larsson, Oskar and Honfi, Daniel},
  booktitle    = {IABSE Congress Stockholm, 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment2016},
  isbn         = {978-385748144-4},
  language     = {eng},
  pages        = {2109--2116},
  publisher    = {IABSE, International Association for Bridge and Structural Engineering},
  title        = {Engineering Assessment Method for Anchorage in Corroded Reinforced Concrete},
  year         = {2016},
}