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Lifetime seismic resilience of aging bridges and road networks.

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Title: Lifetime seismic resilience of aging bridges and road networks.
Authors: Capacci, Luca1 (AUTHOR) luca.capacci@polimi.it, Biondini, Fabio1 (AUTHOR), Titi, Andrea1 (AUTHOR)
Source: Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance. Feb2020, Vol. 16 Issue 2, p266-286. 21p.
Subjects: Bridge bearings, Bridges, Traffic regulations, Road users, Concrete bridges, Reinforced concrete, Traffic flow, DNA damage
Abstract: The performance of lifelines under damage and emergency conditions induced by sudden extreme events, such as earthquakes, can be assessed based on the concept of resilience. Damage also arises in time due to aging, affecting the structural performance of each network component and, consequently, impairing the overall system functionality. Furthermore, the sparse location over the network of vulnerable deteriorating structures, such as spatially distributed bridges, should be taken into account to establish proper infrastructure management policies. In this article, a probabilistic approach is proposed to assess the seismic performance of transportation networks considering the uncertainties involved in the lifetime structural response of aging bridges under different earthquake scenarios. The time-variant seismic capacity associated with prescribed limit states is evaluated by nonlinear incremental dynamic analysis. The initial damage induced by seismic events and its recovery process through structural repair is related to traffic restrictions to different road users. Traffic flow distribution analyses are carried out over the road network to assess the post-event system functionality and the corresponding seismic resilience. The role of different factors such as aging, earthquake scenario, and seismic capacity correlation is investigated by considering spatially distributed reinforced concrete bridges exposed to corrosion and highway networks with detours and re-entry links. [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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DbLabel: Engineering Source
An: 140466333
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Lifetime seismic resilience of aging bridges and road networks.
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  Data: <searchLink fieldCode="DE" term="%22Bridge+bearings%22">Bridge bearings</searchLink><br /><searchLink fieldCode="DE" term="%22Bridges%22">Bridges</searchLink><br /><searchLink fieldCode="DE" term="%22Traffic+regulations%22">Traffic regulations</searchLink><br /><searchLink fieldCode="DE" term="%22Road+users%22">Road users</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete+bridges%22">Concrete bridges</searchLink><br /><searchLink fieldCode="DE" term="%22Reinforced+concrete%22">Reinforced concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Traffic+flow%22">Traffic flow</searchLink><br /><searchLink fieldCode="DE" term="%22DNA+damage%22">DNA damage</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The performance of lifelines under damage and emergency conditions induced by sudden extreme events, such as earthquakes, can be assessed based on the concept of resilience. Damage also arises in time due to aging, affecting the structural performance of each network component and, consequently, impairing the overall system functionality. Furthermore, the sparse location over the network of vulnerable deteriorating structures, such as spatially distributed bridges, should be taken into account to establish proper infrastructure management policies. In this article, a probabilistic approach is proposed to assess the seismic performance of transportation networks considering the uncertainties involved in the lifetime structural response of aging bridges under different earthquake scenarios. The time-variant seismic capacity associated with prescribed limit states is evaluated by nonlinear incremental dynamic analysis. The initial damage induced by seismic events and its recovery process through structural repair is related to traffic restrictions to different road users. Traffic flow distribution analyses are carried out over the road network to assess the post-event system functionality and the corresponding seismic resilience. The role of different factors such as aging, earthquake scenario, and seismic capacity correlation is investigated by considering spatially distributed reinforced concrete bridges exposed to corrosion and highway networks with detours and re-entry links. [ABSTRACT FROM AUTHOR]
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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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/15732479.2019.1653937
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 266
    Subjects:
      – SubjectFull: Bridge bearings
        Type: general
      – SubjectFull: Bridges
        Type: general
      – SubjectFull: Traffic regulations
        Type: general
      – SubjectFull: Road users
        Type: general
      – SubjectFull: Concrete bridges
        Type: general
      – SubjectFull: Reinforced concrete
        Type: general
      – SubjectFull: Traffic flow
        Type: general
      – SubjectFull: DNA damage
        Type: general
    Titles:
      – TitleFull: Lifetime seismic resilience of aging bridges and road networks.
        Type: main
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          Name:
            NameFull: Capacci, Luca
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          Name:
            NameFull: Biondini, Fabio
      – PersonEntity:
          Name:
            NameFull: Titi, Andrea
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            – D: 01
              M: 02
              Text: Feb2020
              Type: published
              Y: 2020
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              Value: 16
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          Titles:
            – TitleFull: Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance
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