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Preliminary dynamic assessment of railway bridges subject to higher speeds
KTH. ELU Konsult AB, Stockholm, Sweden.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. ELU Konsult AB, Stockholm, Sweden.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-5447-2068
2012 (English)In: Civil-Comp Proceedings, ISSN 1759-3433, Vol. 98Article in journal (Refereed) Published
Abstract [en]

Swedish authorities have begun investigating the consequence of upgrading three of their major railway lines from 200 km/h to 250 km/h. The total track length is more than 1200 km and covers over 1000 bridges. Obviously, it is only possible to perform finite element analysis for a limited number of bridges for which the dynamic effects are considered to be a problem. Thus, as a consequence of the large number of bridges, a more efficient assessment approach has to be developed. The project initiated exemplifies the way in which a simple model may be used to help select a suitable bridge type or to identify existing bridges with dynamical problem so that they can be further assessed. This paper presents design curves to calculate the maximum acceleration in multi-span bridges. 

Place, publisher, year, edition, pages
Civil-Comp Press , 2012. Vol. 98
Keywords [en]
Acceleration, Ballast instability, Conceptual design, Design curves, Dynamics, Railway bridges, Railroad bridges, Assessment approaches, Dynamic assessment, Dynamic effects, Dynamical problems, Maximum acceleration, Multi-span bridges, Railroads
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-261552DOI: 10.4203/ccp.98.3Scopus ID: 2-s2.0-85068498494OAI: oai:DiVA.org:kth-261552DiVA, id: diva2:1360523
Note

QC 20191014

Available from: 2019-10-14 Created: 2019-10-14 Last updated: 2019-10-14Bibliographically approved

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Pacoste, CostinKaroumi, Raid

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