Change search
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
Simplified approach to dynamic analysis of railway bridges for high-speed trains
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. (Brobyggnad)ORCID iD: 0000-0002-8926-2140
2018 (English)Report (Other academic)
Abstract [en]

In this report the analysis of 278 existing railway bridges is presented. The aim is to investigate how many of these bridges that potentially can be upgraded to higher speeds, with a target of 250 km/h. Due to the vast amount of bridges and the limited resources, the analyses are performed using simplified 2D models. The analysis is afflicted with several uncertainties, both regarding input parameters as well as model uncertainties. The results should therefore be interpreted carefully and primarily serve as an indicator for which bridges that may or may not meet the requirements. Large uncertainties are especially expected for portal frame bridges due to its inherently large interaction with the surrounding embankment and 3D behaviour.

The results from the analysis show that a total of 22 bridges theoretically fail to meet the dynamic requirements. A combination of refined analysis and experimental validation is recommended to better assess the dynamic response for these bridges. Among the most critical cases are several steel-concrete composite bridges, that due to a combination of low mass and low natural frequency may be prone to resonant loading. Retrofitting with external dampers may for some bridges be a viable solution.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2018. , p. 312
Series
TRITA-ABE-RPT ; 1837
Keywords [en]
Railway bridge; high-speed train; dynamic analysis; deck acceleration
National Category
Infrastructure Engineering
Research subject
Civil and Architectural Engineering
Identifiers
URN: urn:nbn:se:kth:diva-240578ISRN: KTH/BKN/RPT-1837-SEOAI: oai:DiVA.org:kth-240578DiVA, id: diva2:1272819
Funder
Swedish Transport Administration, TRV 2018/109558
Note

QC 20181221

Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2018-12-21Bibliographically approved

Open Access in DiVA

fulltext(20211 kB)75 downloads
File information
File name FULLTEXT01.pdfFile size 20211 kBChecksum SHA-512
385f42ac6a62e974a912d7c0bc39e104e0add922b76929c2f4d3d33919640c98955f6226d1040af52a8038aec2f2deb6ef8b0b50405144fc2899ea08cf8791cf
Type fulltextMimetype application/pdf

Authority records BETA

Andersson, Andreas

Search in DiVA

By author/editor
Andersson, Andreas
By organisation
Structural Engineering and Bridges
Infrastructure Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 75 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 1933 hits
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