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Horizontal bracing in steel I-girder bridges with composite concrete decks
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Ramboll, Sweden.ORCID iD: 0000-0002-9627-4713
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Ramboll, Sweden.ORCID iD: 0000-0002-8353-9225
Finnish Transport Infrastructure Agency, Finland.
Finnish Transport Infrastructure Agency, Finland.
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2022 (English)In: IABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures - Report, International Association for Bridge and Structural Engineering / [ed] František Wald, Pavel Ryjáček, International Association for Bridge and Structural Engineering, 2022, p. 1684-1690Conference paper, Published paper (Refereed)
Abstract [en]

This paper treats the use of horizontal trusses between the bottom flanges of new I-girder bridges, to create a box-like behaviour. In contrast to the general vertical cross frames of an I-girder bridge, the horizontal trusses bring along substantial torsional stiffness of the cross section of a bridge. The concept gives large advantages when it comes to fatigue caused by eccentric loading, since the I-girders will share the load more equally. The concept is exemplified by bridges in Finland, Guatemala and France, and some design aspects as well as practical aspects are discussed. 

Place, publisher, year, edition, pages
International Association for Bridge and Structural Engineering, 2022. p. 1684-1690
Keywords [en]
box action, bracings, bridge fatigue, I-girders bridges, trusses
National Category
Reliability and Maintenance
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-92201DOI: 10.2749/prague.2022.1684Scopus ID: 2-s2.0-85133509021OAI: oai:DiVA.org:ltu-92201DiVA, id: diva2:1683874
Conference
IABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, May 25-27, 2022
Note

ISBN for host publication: 978-3-85748-181-9

Available from: 2022-07-19 Created: 2022-07-19 Last updated: 2023-09-13Bibliographically approved

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Vestman, VictorCollin, PeterHällmark, Robert

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