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Probabilistic life-cycle seismic resilience assessment of aging bridge networks considering infrastructure upgrading.

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Title: Probabilistic life-cycle seismic resilience assessment of aging bridge networks considering infrastructure upgrading.
Authors: Capacci, Luca1 (AUTHOR) luca.capacci@polimi.it, Biondini, Fabio1 (AUTHOR)
Source: Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance. Apr2020, Vol. 16 Issue 4, p659-675. 17p.
Subjects: Earthquake hazard analysis, Bridge bearings, Traffic regulations, Bridges, Concrete bridges, Earthquake magnitude, Reinforced concrete, Road construction
Abstract: This paper presents a probabilistic framework for life-cycle seismic resilience assessment of aging bridges and transportation road networks subjected to infrastructure upgrade. The proposed framework accounts for the uncertainties in damage occurrence of vulnerable deteriorating bridges and restoration rapidity of the overall system functionality. The time-variant bridge fragilities and the damage combinations probability are evaluated considering different earthquake magnitudes and epicenter locations that define the seismic scenario. Traffic analyses are carried out to assess in probabilistic terms the network functionality profiles, the corresponding resilience levels, and a damage-based measure of life-cycle resilience. The effects of structural deterioration, seismic damage, and post-event repair actions under uncertainty are related to traffic restrictions applied over the network. The framework is applied to reinforced concrete bridges exposed to chloride-induced corrosion and simple road networks with a single bridge or two bridges in series under different earthquake scenarios. The effect of network upgrading is also investigated by adding road segments with a vulnerable bridge to strengthen the network connectivity and improve the lifetime system resilience. The results show the capability of the proposed resilience framework in quantifying the detrimental effects of structural deterioration at the network scale and the beneficial consequences of infrastructure investments, such as enhancing the network redundancy with the construction of an additional highway branch. [ABSTRACT FROM AUTHOR]
Copyright of Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 142082936
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Probabilistic life-cycle seismic resilience assessment of aging bridge networks considering infrastructure upgrading.
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  Data: <searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Bridge+bearings%22">Bridge bearings</searchLink><br /><searchLink fieldCode="DE" term="%22Traffic+regulations%22">Traffic regulations</searchLink><br /><searchLink fieldCode="DE" term="%22Bridges%22">Bridges</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete+bridges%22">Concrete bridges</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquake+magnitude%22">Earthquake magnitude</searchLink><br /><searchLink fieldCode="DE" term="%22Reinforced+concrete%22">Reinforced concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Road+construction%22">Road construction</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This paper presents a probabilistic framework for life-cycle seismic resilience assessment of aging bridges and transportation road networks subjected to infrastructure upgrade. The proposed framework accounts for the uncertainties in damage occurrence of vulnerable deteriorating bridges and restoration rapidity of the overall system functionality. The time-variant bridge fragilities and the damage combinations probability are evaluated considering different earthquake magnitudes and epicenter locations that define the seismic scenario. Traffic analyses are carried out to assess in probabilistic terms the network functionality profiles, the corresponding resilience levels, and a damage-based measure of life-cycle resilience. The effects of structural deterioration, seismic damage, and post-event repair actions under uncertainty are related to traffic restrictions applied over the network. The framework is applied to reinforced concrete bridges exposed to chloride-induced corrosion and simple road networks with a single bridge or two bridges in series under different earthquake scenarios. The effect of network upgrading is also investigated by adding road segments with a vulnerable bridge to strengthen the network connectivity and improve the lifetime system resilience. The results show the capability of the proposed resilience framework in quantifying the detrimental effects of structural deterioration at the network scale and the beneficial consequences of infrastructure investments, such as enhancing the network redundancy with the construction of an additional highway branch. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1080/15732479.2020.1716258
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      – Code: eng
        Text: English
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        PageCount: 17
        StartPage: 659
    Subjects:
      – SubjectFull: Earthquake hazard analysis
        Type: general
      – SubjectFull: Bridge bearings
        Type: general
      – SubjectFull: Traffic regulations
        Type: general
      – SubjectFull: Bridges
        Type: general
      – SubjectFull: Concrete bridges
        Type: general
      – SubjectFull: Earthquake magnitude
        Type: general
      – SubjectFull: Reinforced concrete
        Type: general
      – SubjectFull: Road construction
        Type: general
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      – TitleFull: Probabilistic life-cycle seismic resilience assessment of aging bridge networks considering infrastructure upgrading.
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            NameFull: Capacci, Luca
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            NameFull: Biondini, Fabio
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            – D: 01
              M: 04
              Text: Apr2020
              Type: published
              Y: 2020
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            – TitleFull: Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance
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