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Interface stresses in concrete bridge deck overlays subjected to differentialshrinkage
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.
Department of Civil and Architectural Engineering Department of Structural and Architectual Engineering Division, Royal Institute of Technology.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.
2017 (engelsk)Inngår i: Proceedings of the 23rd Nordic Concrete Research Symposium, Oslo, Norway: Nordic Concrete Federation , 2017Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Concrete overlays on bridge decks are expected to be more durable as compared with the more common asphalt solution. Besides stresses due to traffic load and temperature variations at service, the overlays are exposed to stresses due to long term shrinkage. Of interest is to evaluate the concrete overlay due to the shrinkage induced stresses at the composite interface. Three strategies have been employed to gain knowledge on the stresses; 1) use of non-destructive test systems via field observations, 2) a numerical study on a concrete composite slab tested in laboratory, 3) recordings of realistic shrinkage and climate data on a reference bridge using vibrating strain gauges and humidity probes in the newly cast concrete overlay. The data were used as input data for a linear elastic finite element model. This article demonstrates this last phase of the work.

sted, utgiver, år, opplag, sider
Oslo, Norway: Nordic Concrete Federation , 2017.
HSV kategori
Forskningsprogram
Konstruktionsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-65991ISBN: 978-82-8208-056-9 (tryckt)OAI: oai:DiVA.org:ltu-65991DiVA: diva2:1147539
Konferanse
23th Symposium on Nordic Concrete Research & Developement, Aalborg, Denmark, 21 - 23 August 2017
Tilgjengelig fra: 2017-10-06 Laget: 2017-10-06 Sist oppdatert: 2017-10-06bibliografisk kontrollert

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