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Seismic vulnerability analysis of continuous beam bridge based on finite element Method.

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Title: Seismic vulnerability analysis of continuous beam bridge based on finite element Method.
Authors: Li, Jianfeng1,2 (AUTHOR), Jin, Mengmeng3 (AUTHOR), Chen, Junbo3,4 (AUTHOR), Wang, Guojun5 (AUTHOR), Wang, Yufeng1 (AUTHOR), Yan, Huihui6 (AUTHOR), Weng, Zucan7 (AUTHOR), Huang, Zhigang8 (AUTHOR), Ai, Hui9 (AUTHOR), Wu, Li1 (AUTHOR) wuli7809@126.com
Source: Environment, Development & Sustainability. Feb2026, Vol. 28 Issue 2, p3613-3627. 15p.
Subject Terms: *Finite element method, *Building foundations, *Continuous bridges, *Bridge vibration, *Earthquake hazard analysis, *Seismic wave studies
Abstract: Continuous beam bridges of monopile foundation are commonly used due to its good stress performance, stiffness and beautiful shape. However, scouring will weaken the lateral restraint of soil on pile foundation. It affects the dynamics of the bridge structure and make pile foundation vulnerable to earthquakes. Therefore, it is required to analyze its impacts on continuous beam bridges, especially the seismic vulnerability of the pile foundations. This paper establishes a 3D nonlinear analysis model with OpenSees software, which obtains the probabilistic seismic demand models at three scouring depths by linear regression analysis and incremental dynamic analysis (IDA). It has drawn and analyzed seismic vulnerability curves of pile foundation at three different scouring depths. The influence of scouring around pile foundations on bridge dynamics, seismic response, and vulnerability is obtained. The results indicate that the failure probability of pile foundation decreases with the increase in scouring depth. This demonstrates that scouring around the pile foundation weakens the lateral soil restraint, increasing the natural vibration period of bridge as well as softening the bridge structure. This reduces the maximum seismic response of pile foundation, which is conductive to the seismic resistance of bridge. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 192482134
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Seismic vulnerability analysis of continuous beam bridge based on finite element Method.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Jianfeng%22">Li, Jianfeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jin%2C+Mengmeng%22">Jin, Mengmeng</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Junbo%22">Chen, Junbo</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Guojun%22">Wang, Guojun</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yufeng%22">Wang, Yufeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yan%2C+Huihui%22">Yan, Huihui</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weng%2C+Zucan%22">Weng, Zucan</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Zhigang%22">Huang, Zhigang</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ai%2C+Hui%22">Ai, Hui</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Li%22">Wu, Li</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wuli7809@126.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Environment%2C+Development+%26+Sustainability%22">Environment, Development & Sustainability</searchLink>. Feb2026, Vol. 28 Issue 2, p3613-3627. 15p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br />*<searchLink fieldCode="DE" term="%22Building+foundations%22">Building foundations</searchLink><br />*<searchLink fieldCode="DE" term="%22Continuous+bridges%22">Continuous bridges</searchLink><br />*<searchLink fieldCode="DE" term="%22Bridge+vibration%22">Bridge vibration</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Seismic+wave+studies%22">Seismic wave studies</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Continuous beam bridges of monopile foundation are commonly used due to its good stress performance, stiffness and beautiful shape. However, scouring will weaken the lateral restraint of soil on pile foundation. It affects the dynamics of the bridge structure and make pile foundation vulnerable to earthquakes. Therefore, it is required to analyze its impacts on continuous beam bridges, especially the seismic vulnerability of the pile foundations. This paper establishes a 3D nonlinear analysis model with OpenSees software, which obtains the probabilistic seismic demand models at three scouring depths by linear regression analysis and incremental dynamic analysis (IDA). It has drawn and analyzed seismic vulnerability curves of pile foundation at three different scouring depths. The influence of scouring around pile foundations on bridge dynamics, seismic response, and vulnerability is obtained. The results indicate that the failure probability of pile foundation decreases with the increase in scouring depth. This demonstrates that scouring around the pile foundation weakens the lateral soil restraint, increasing the natural vibration period of bridge as well as softening the bridge structure. This reduces the maximum seismic response of pile foundation, which is conductive to the seismic resistance of bridge. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s10668-024-05119-x
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 3613
    Subjects:
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Building foundations
        Type: general
      – SubjectFull: Continuous bridges
        Type: general
      – SubjectFull: Bridge vibration
        Type: general
      – SubjectFull: Earthquake hazard analysis
        Type: general
      – SubjectFull: Seismic wave studies
        Type: general
    Titles:
      – TitleFull: Seismic vulnerability analysis of continuous beam bridge based on finite element Method.
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 1387585X
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              Value: 28
            – Type: issue
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            – TitleFull: Environment, Development & Sustainability
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