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Dynamic testing of a soil-steel composite railway bridge
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges (name changed 20110630).ORCID iD: 0000-0002-5447-2068
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges (name changed 20110630).
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges (name changed 20110630).
2010 (English)In: Proc. 5th Int. conference on bridge maintenance, safety and management (IABMAS 2010), 2010, 2944-2948 p.Conference paper, Published paper (Refereed)
Abstract [en]

The dynamic response of a long-span arch soil-steel composite railway bridge is studied. The bridge has a span of 11 m and a rise of 4.3 m. Strains, displacements and vertical ballast accelerations were measured during passages of a locomotive at different speeds. The results indicate that the speed of the locomotive has a large influence on the displacements, thrusts and moments. The structure was found to be safe when measured values of moments and thrusts were compared with the live load calculations according to design codes. However, dynamic amplification factors as high as 1.45 were obtained for the moments at the quarter point and this is found to be much greater than the values specified in bridge design codes. Despite this, due to the high damping involved, bridges of this kind are believed to be less sensitive to resonance problems from passing trains.

Place, publisher, year, edition, pages
2010. 2944-2948 p.
Keyword [en]
Bridge design, Design codes, Different speed, Dynamic amplification factors, Dynamic testing, High damping, Live loads, Long span, Railway bridges, Resonance problem
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-78839ISI: 000320615005017Scopus ID: 2-s2.0-84856725257OAI: oai:DiVA.org:kth-78839DiVA: diva2:492924
Conference
5th Int. conference on bridge maintenance, safety and management (IABMAS 2010), Philadelphia, Pennsylvania, USA
Note

QC 20120209

Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2013-12-19Bibliographically approved

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Karoumi, Raid

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Citation style
  • apa
  • harvard1
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
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  • asciidoc
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