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A decision support framework for fatigue assessment of steel bridges

Leander, John; Honfi, Daniel; Larsson Ivanov, Oskar LU and Björnsson, Ivar LU (2018) In Engineering Failure Analysis 91. p.306-314
Abstract
Many bridges are approaching or have already passed their expected service life. For steel bridges, fatigue is often the decisive degradation phenomenon that theoretically puts restrictions on a continued use. At the same time, fatigue is also afflicted with large uncertainties on the resistance side as well as on the action effect side. An accurate assessment of the service life will require measures outside the governing regulations but understanding what steps to take and how to consider the outcome for decisions on interventions can be a difficult task for a non expert. This paper presents possible assessment actions and a decision support framework for rational decisions on interventions to extend the theoretical service life of... (More)
Many bridges are approaching or have already passed their expected service life. For steel bridges, fatigue is often the decisive degradation phenomenon that theoretically puts restrictions on a continued use. At the same time, fatigue is also afflicted with large uncertainties on the resistance side as well as on the action effect side. An accurate assessment of the service life will require measures outside the governing regulations but understanding what steps to take and how to consider the outcome for decisions on interventions can be a difficult task for a non expert. This paper presents possible assessment actions and a decision support framework for rational decisions on interventions to extend the theoretical service life of existing bridges. A case study of a critical railway bridge is incorporated to demonstrate the framework. The aim is to provide a tool for bridge managers on how to evaluate and procure different assessment actions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bridges, Fatigue, Decisions, Risk, Monitoring
in
Engineering Failure Analysis
volume
91
pages
306 - 314
publisher
Elsevier
external identifiers
  • scopus:85053060103
ISSN
1350-6307
DOI
10.1016/j.engfailanal.2018.04.033
language
English
LU publication?
yes
id
776607c7-24ea-4cb0-b21d-793823b5b7e8
date added to LUP
2018-05-03 08:11:28
date last changed
2019-08-14 04:15:40
@article{776607c7-24ea-4cb0-b21d-793823b5b7e8,
  abstract     = {Many bridges are approaching or have already passed their expected service life. For steel bridges, fatigue is often the decisive degradation phenomenon that theoretically puts restrictions on a continued use. At the same time, fatigue is also afflicted with large uncertainties on the resistance side as well as on the action effect side. An accurate assessment of the service life will require measures outside the governing regulations but understanding what steps to take and how to consider the outcome for decisions on interventions can be a difficult task for a non expert. This paper presents possible assessment actions and a decision support framework for rational decisions on interventions to extend the theoretical service life of existing bridges. A case study of a critical railway bridge is incorporated to demonstrate the framework. The aim is to provide a tool for bridge managers on how to evaluate and procure different assessment actions.},
  author       = {Leander, John and Honfi, Daniel and Larsson Ivanov, Oskar and Björnsson, Ivar},
  issn         = {1350-6307},
  keyword      = {Bridges,Fatigue,Decisions,Risk,Monitoring},
  language     = {eng},
  month        = {04},
  pages        = {306--314},
  publisher    = {Elsevier},
  series       = {Engineering Failure Analysis},
  title        = {A decision support framework for fatigue assessment of steel bridges},
  url          = {http://dx.doi.org/10.1016/j.engfailanal.2018.04.033},
  volume       = {91},
  year         = {2018},
}