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Fracture energy of concrete for bridge assessment
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0001-9937-6072
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0002-1398-6118
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Wsp Bridges and Tunnels, Göteborg, Sweden.ORCID iD: 0000-0001-8889-4237
Savonia University of Applied Sciences, Kuopio, Finland.
Show others and affiliations
2020 (English)In: 1st IABSE Online Symposium 2020: Synergy of Culture and Civil Engineering - History and Challenges / [ed] Jan Bien; Jan Biliszczuk; Pawel Hawryszkow; Maciej Hildebrand; Marta Knawa-Hawryszkow; Krzysztof Sadowski, International Association for Bridge and Structural Engineering (IABSE) , 2020, p. 692-699Conference paper, Published paper (Refereed)
Abstract [en]

In numerical assessments of concrete bridges, the value of the concrete fracture energy GF plays an important role. However, mostly the fracture energy is only estimated based on the concrete compressive strength using empirical formulae. In order to study methods to determine the concrete fracture energy for existing bridges, tests were carried out on 55-year-old concrete from a bridge tested to failure in Kiruna in northern Sweden. Uniaxial tensile tests are performed on notched cylindrical concrete cores drilled out from this and other bridges. In the paper, different methods to determine the concrete fracture energy are discussed and recommendations are given for assessment procedures.

Place, publisher, year, edition, pages
International Association for Bridge and Structural Engineering (IABSE) , 2020. p. 692-699
Keywords [en]
Assessment of structures, Brittleness, Concrete modelling, Fracture energy, Three-point-bending test, Uniaxial tensile test
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-85850Scopus ID: 2-s2.0-85103462867OAI: oai:DiVA.org:ltu-85850DiVA, id: diva2:1570812
Conference
1st IABSE Online Symposium 2020, Wroclaw, Poland (Online), October 7-9, 2020
Funder
Swedish Transport AdministrationLuleå University of Technology
Note

ISBN för värdpublikation: 978-385748169-7

Available from: 2021-06-22 Created: 2021-06-22 Last updated: 2023-09-05Bibliographically approved

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Nilforoush, RasoulNilimaa, JonnyBagge, NiklasOhlsson, UlfNilsson, MartinSas, GabrielElfgren, Lennart

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