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Fatigue assessment of stringer beams using structural healthmonitoring
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Number of Authors: 3
2016 (English)In: 19th IABSE Congress Strockholm 21-23 September 2016: Challenges in Design and Construction of an Innovative ans Sustainable Built Environment, 2016Conference paper (Refereed)
Abstract [en]

Fatigue assessment of existing bridges is often carried out through simple calculations where the nominalstress range is compared with the fatigue strength based on a number of detail categories specified incodes. Presented in this paper, is the stepwise fatigue assessment through measurements of the 60 yearold bridge over Rautasjokk located in northern Sweden. According to the code‐based assessment of thestringers, it has already exceeded its lifetime about four times; however no cracks have been identified. Bymeasuring strains the real state of stress was identified, where both nominal stresses and local approacheshave been evaluated and compared. Even though the local approach should provide a better accuracy incomparison with the nominal stresses, this approach was only favorable for one out of the three studiedlocations.

Place, publisher, year, edition, pages
2016.
National Category
Civil Engineering Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-59786OAI: oai:DiVA.org:ltu-59786DiVA: diva2:1037553
Conference
19th IABSE Congress, Strockholm, 21-23 September 2016 C
Available from: 2016-10-17 Created: 2016-10-17 Last updated: 2016-11-30Bibliographically approved

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Häggström, JensBlanksvärd, ThomasCollin, Peter
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