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Test to failure of a steel truss bridge: Calibration of assessment methods
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-5154-7044
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 Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
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2014 (Swedish)In: Bridge Maintenance, Safety, Management and Life Extension: proceedings of the Seventh International Conference of Bridge Maintenance, Safety and Management, 7-11 July 2014, Shanghai, China / [ed] Airong Chen; Dan M. Frangopol; Xin Ruan, London: CRC Press, Taylor & Francis Group , 2014, 1076-1081 p.Conference paper, Published paper (Refereed)
Abstract [en]

The steel truss railway bridge at Åby River was built in 1957 with a span of 32 m (105 feet). In 2012 it was replaced by a new steel beam bridge and the old bridge was placed beside the river. It was tested to failure to study its remaining load-carrying capacity in September 2013. The test was carried out by Luleå University of Technology by commission from Trafikverket as a part of the European Research Project MAINLINE (www.mainline-project.eu). In this paper some preliminary results are given. Two hydraulic jacks, anchored by cables to the bedrock, pulled the bridge downwards. The bridge remained elastic up to about three times the original design load and the load could then be almost doubled with substantial yielding deformations before a buckling failure appeared in the top girders for a load of ca. 11 MN (1000 short tons) for a midpoint deflection of ca. 0, 2 m (8 inches). No brittle or fatigue failure in any of the joints appeared and the bridge proved to behave in a ductile way with a substantial hidden capacity.

Place, publisher, year, edition, pages
London: CRC Press, Taylor & Francis Group , 2014. 1076-1081 p.
Keyword [en]
Civil engineering and architecture - Building engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Byggnadsteknik
National Category
Infrastructure Engineering Mathematical Analysis
Research subject
Structural Engineering; Mathematics; Attractive built environment (AERI)
Identifiers
URN: urn:nbn:se:ltu:diva-38516Local ID: cf14b28e-b3d1-4c23-b3bc-c2418f271a03ISBN: 978-1-138-00103-9 (print)ISBN: 978-1-315-76069-8 (electronic)OAI: oai:DiVA.org:ltu-38516DiVA: diva2:1012017
Conference
International Conference of Bridge Maintenance, Safety and Management : 07/07/2014 - 11/07/2014
Projects
Centrum för riskanalys och riskhantering, CRR, Sveriges Bygguniversitet, Mainline-MAINtenance, renewaL and Improvement of rail transport iNfrastructure to reduce Economic and environmental impacts
Note
Godkänd; 2014; 20140820 (jonnil)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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