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Traffic induced vibrations on a portal frame railway bridge: Comparison of theory and measurements
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges. KTH, School of Engineering Sciences (SCI), Centres, The KTH Railway Group. (Järnvägsgruppen-Infrastruktur)
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The effect of different vertical support stiffness of a frame railway bridge is investigated in this study. Due to the dynamic loads of the high speed trains that run over the railway bridges, the response of these structures is far from the static effects. The frame bridge chosen for this study is the Rössjö bridge, located on the Bothnia Line, the first high speed railway built in Sweden. Using a theoretical model of this bridge, the eigenfrequencies of the structure and the vertical accelerations of the deck are evaluated. Not only different vertical support stiffness, but also different trains and train speeds are studied. Finally, some real in-situ measurements are compared with the results from the theoretical model.

Place, publisher, year, edition, pages
2011. , 60 p.
Series
Trita-BKN-Examensarbete, ISSN 1103-4297 ; 320
Keyword [en]
Frame bridge, Dynamics, Support stiffness, High speed train, Ballast instability, Moving loads
Identifiers
URN: urn:nbn:se:kth:diva-36351ISRN: KTH/BKN/EX-320-SEOAI: oai:DiVA.org:kth-36351DiVA: diva2:430647
Subject / course
Structural Design and Bridges
Educational program
Master of Science in Engineering - Urban Management
Uppsok
Technology
Supervisors
Available from: 2011-07-14 Created: 2011-07-11 Last updated: 2011-07-14Bibliographically approved

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Structural Design and BridgesThe KTH Railway Group

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf