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Assessment of a railway concrete arch bridge by numerical modelling and measurements
Central South University of Science and Technology, Changsha, Hunan, PR China.
Central South University of Science and Technology, Changsha, Hunan, PR China.
Bodens kommun, Sverige.
WSP, Luleå.
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2008 (English)In: Bridge Maintenance, Safety, Management, Health Monitoring and Informatics: Proceedings of the fourth International Conference on Bridge Maintenance, Safety and Management, Seoul, Korea, 13-17 July 2008. Leiden: CRC Press/Balkema, Taylor & Francis Group, ISBN 978-0-415-46844-2, 732 pp + CD with full versions of papers, 3699 pp. / [ed] Hyun-Moo Koh and Dan M. Frangopol, Leiden: CRC Press, 2008, p. 3733-3742Conference paper, Published paper (Refereed)
Abstract [en]

Two main railway concrete arch bridges have been investigated in northern Sweden: the Vindel Bridge over the Vindel River with a span of 110 m and the Långforsen Bridge over the Kalix River with a span of 90 m. The bridges were constructed in the 1950s with similar designs. In order to investigate the possibility to increase the axle load from 225 kN to 250kN, two 3-D Finite Element models with shell elements were developed and two field tests were carried out with passing trains and ambient vibrations. The measurement frequencies and mode shapes were studied with the stochastic subspace identification method in the time domain. Based on a comparison of the predictions of the FE analyses and the results of the field tests, the FE models were updated. It was found that it was possible to make good predictions of the actual dynamic response with reasonable assumptions of material properties and joint stiffness in the structure.

Place, publisher, year, edition, pages
Leiden: CRC Press, 2008. p. 3733-3742
Keywords [en]
Concrete arch bridge, assessment, vibration, numerical modelling
National Category
Transport Systems and Logistics Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-67035ISBN: 978-0-415-46844-2 (print)OAI: oai:DiVA.org:ltu-67035DiVA, id: diva2:1166803
Conference
4th International Conference on Bridge Maintenance, Safety and Management, Seoul, Korea, 13-17 July, 2008
Available from: 2017-12-15 Created: 2017-12-15 Last updated: 2018-02-09Bibliographically approved

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