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Parametric evaluation of viscous damper retrofit for high-speed railway bridges
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-1284-3641
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. Department of Bridges, Tyréns AB, Stockholm, Sweden.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. Department of Bridges, Tyréns AB, Stockholm, Sweden.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-5447-2068
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Several of the bridges belonging to the Bothnia Line, located in northern Sweden, do not theoretically fulfil the current design limit for the vertical deck acceleration, when being subjected to high-speed trains. Hence, it is important to find appropriate vibration mitigation strategies that are applicable to railway bridges, in order to reduce the acceleration caused by passing trains. One way of solving this problem is to install external viscous dampers. A finite element solution for damper retrofit of high-speed railway bridges is proposed in this paper. The bridge is modelled as a two-dimensional Euler-Bernoulli beam, with inclined dashpots connected between the superstructure and the abutments. Furthermore, this paper highlights the influence of several parameters on the effectiveness of the dampers.

Place, publisher, year, edition, pages
Optical Society of America, 2015. 1672-1681 p.
Keyword [en]
High-speed trains, Passive damping, Railway bridges, Structural dynamics, Viscous dampers
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-174727Scopus ID: 2-s2.0-84942288018OAI: oai:DiVA.org:kth-174727DiVA: diva2:867245
Conference
Conference of 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015
Note

QC 20151105

Available from: 2015-11-05 Created: 2015-10-07 Last updated: 2015-12-02Bibliographically approved

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Rådeström, SarahKaroumi, Raid

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CiteExportLink to record
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Citation style
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  • harvard1
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Output format
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  • asciidoc
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