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Full Scale Test of a PC Bridge to Calibrate Assessment Methods
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. WSP Bridge & Hydraulic Design, Göteborg, Sweden.ORCID iD: 0000-0001-8889-4237
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.ORCID iD: 0000-0001-9493-9550
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Savonia University of Applied Sciences, Kuopio, Finland.
Show others and affiliations
2021 (English)In: IABSE Congress Ghent 2021: Structural Engineering for Future Societal Needs / [ed] H.H. (Bert) Snijder, Bart De Pauw, Sander van Alphen, Movares, Pierre Mengeot, International Association for Bridge and Structural Engineering (IABSE) , 2021, p. 965-973Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, experiences on the development of an assessment method for existing bridges are presented. The method is calibrated using the results of full-scale testing to failure of a prestressed bridge in Sweden. To evaluate the key parameters for the structural response, measured by deflections, strains in tendons and stirrups and crack openings, a sensitivity study based on the concept of fractional factorial design is incorporated to the assessment. Results showed that the most significant parameters are related to the tensile properties of the concrete (tensile strength and fracture energy) and the boundary conditions. A finite element (FE) model in which the results of the sensitivity analysis were applied, was able to predict accurately the load-carrying capacity of the bridge and its failure mode. Two additional existing prestressed concrete bridges, that will be used to improve further the method, are also described, and discussed.

Place, publisher, year, edition, pages
International Association for Bridge and Structural Engineering (IABSE) , 2021. p. 965-973
Keywords [en]
Assessment methods, calibration, boundary conditions, existing prestressed concrete bridges, tensile strength, fracture energy, full-scale testing, finite element modelling
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-87372DOI: 10.2749/ghent.2021.0965Scopus ID: 2-s2.0-85119063548OAI: oai:DiVA.org:ltu-87372DiVA, id: diva2:1600414
Conference
IABSE Congress 2021: Structural Engineering for Future Societal Needs, Ghent, Belgium, September 22-24, 2021
Funder
Swedish Transport AdministrationSvenska Byggbranschens Utvecklingsfond (SBUF)
Note

Funder: BBT; LKAB; Swedish Universities of the Built Environment

Available from: 2021-10-04 Created: 2021-10-04 Last updated: 2023-09-06Bibliographically approved

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CiteExportLink to record
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