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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).
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
2009 (English)In: Engineering structures, ISSN 0141-0296, E-ISSN 1873-7323, Vol. 31, no 12, 2803-2811 p.Article in journal (Refereed) Published
Abstract [en]

Actual dynamic response of a long-span corrugated steel culvert railway bridge is studied. The bridge, which is a type of soil-steel composite structures, has a span of 11 m. Tests were carried out by measuring strains and displacements during passages of a locomotive at different speeds. Vertical ballast accelerations as well as the effects of braking forces were also measured. The tests showed that the speed has a large influence on the displacements, thrusts and moments. The measured dynamic displacements and thrusts are as much as 20% larger than the corresponding static response. This is greater than the values specified in bridge design codes. Dynamic amplification factors as high as 1.45 were obtained for the moments at the quarter point which is found to be much larger than the values for the crown point. This type of bridge structure is believed to be less sensitive to resonance from passing trains than other common bridge types, due to the high damping values obtained from the forced vibration tests.

Place, publisher, year, edition, pages
2009. Vol. 31, no 12, 2803-2811 p.
Keyword [en]
Culverts, Railway bridges, Dynamic loads, Field tests, Dynamic amplification factors, Ballast accelerations, Monitoring, Instrumentation
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-13730DOI: 10.1016/j.engstruct.2009.07.028ISI: 000272428900001Scopus ID: 2-s2.0-70449528402OAI: oai:DiVA.org:kth-13730DiVA: diva2:326789
Note

QC 20100624

Available from: 2010-06-24 Created: 2010-06-24 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Static and dynamic behaviour of soil-steel composite bridges obtained by field testing
Open this publication in new window or tab >>Static and dynamic behaviour of soil-steel composite bridges obtained by field testing
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2009. xviii, 55 p.
Series
Trita-BKN. Bulletin, ISSN 1103-4270 ; 98
Identifiers
urn:nbn:se:kth:diva-10530 (URN)
Public defence
2009-05-27, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
QC 20100624Available from: 2009-05-25 Created: 2009-05-25 Last updated: 2010-07-19Bibliographically approved

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Karoumi, Raid

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