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The instrumentation and monitoring of the Vårby Bridge
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.
Projektengagemang i Stockholm AB.
2010 (Swedish)In: Large structures and infrastructures for environmentally constrained and urbanised areas: IABSE symposium, Venice 2010 ; [34th International Symposium on Bridge and Structural Engineering, Venice, Italy, September 22 - 24, 2010] / [ed] Anton Steffen, International Association for Bridge and Structural Engineering, 2010Conference paper, Published paper (Refereed)
Abstract [en]

Numerous cracks have been discovered in the Vårby Bridge near Stockholm, Sweden. All cracks are found at the junctions between cross girders and the main girders, more specifically, at the welds connecting the vertical web stiffeners to the top flanges of the main girders. In order to identify the reason for the observed cracks, an ongoing investigation under the commision of the bridge owner was started in the spring of 2009. One conclusions so far is that the observed cracks are to 100 % certainty a result of fatigue.FEM-modeling is currently going on as a part of a master thesis. As the fatigue process is distortional the propagation phase of the observed cracks might slow down or even stop. One task will thus be to determine the stress intensity factor versus crack length relationship in order to model a growing crack. Suggestions of possible of methods of refurbishment, based upon the results, will then be presented to the bridge owner.

Place, publisher, year, edition, pages
International Association for Bridge and Structural Engineering, 2010.
Series
IABSE Report, ISSN 1025-9104 ; 97
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-38487DOI: 10.2749/222137810796024628Local ID: ce7a90c6-0c00-4e83-b26b-6941ebcdae74ISBN: 978-385748-122-2 (print)OAI: oai:DiVA.org:ltu-38487DiVA: diva2:1011988
Conference
International Symposium on Bridge and Structural Engineering : 22/09/2010 - 24/09/2010
Note
Godkänd; 2010; 20120916 (mattni)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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