Fatigue assessment of stringer beams using structural healthmonitoring
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)
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
Research subject Structural Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-59786OAI: oai:DiVA.org:ltu-59786DiVA: diva2:1037553
19th IABSE Congress, Strockholm, 21-23 September 2016