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3D non-linear FE analysis of a full scale test to failure of a RC Railway Bridge strengthened with carbon fibre bars
Savonia University of Applied Sciences, Kuopia, Finland.
Bodens kommun, Sverige.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0002-8682-876X
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
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Number of Authors: 8
2016 (English)In: IABSE CONGRESS, STOCKHOLM, 2016: Challenges in Design and Construction of an Innovativeand Sustainable Built Environment / [ed] Lennart Elfgren, Johan Jonsson, Mats Karlsson, Lahja Rydberg-Forssbeck and Britt Sigfrid, CH - 8093 Zürich, Switzerland: International Association for Bridge and Structural Engineering, 2016, 2527-2535 p.Conference paper, Published paper (Refereed)
Abstract [en]

At a full scale loading test to failure a 50 year old concrete railway trough bridge in Örnsköldsvik, in northern Sweden was tested to failure. The test was a part of the European Research Project “Sustainable Bridges” regarding assessment and strengthening of existing bridges. In the projectnew calculation methods were developed to capture the behaviour of the bridge during increasing load. The bridge was strengthened in bending with rods of Carbon Fiber Reinforced Polymer (CFRP) before the loading test. Failure was reached for an applied load of 11.7 MN by pulling a steel beam placed in the middle of one of the two spans downwards. The achieved failure was a combination of bond, shear, torsion and bending. The developed model, a 3D -non-linear finiteelement (FE) model with discrete reinforcement, gave accurate accounts of the response of thebridge. The FE calculations show the effect of the strengthening with CFRP and even the effect of the epoxy when using the Near Surface Mounted Reinforcement (NSMR) strengthening method.

Place, publisher, year, edition, pages
CH - 8093 Zürich, Switzerland: International Association for Bridge and Structural Engineering, 2016. 2527-2535 p.
Series
IABSE Congress Reports
Keyword [en]
Bridge, Strengthening, Full scale test, Failure Analysis, Bond, Shear, Near Surface Mounted reinforcement (NSMR), Carbon Fibre Reinforced Polymer CFRP), Ultimate load carrying capacity, 3D Non-linear finite element analysis.
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-60997Scopus ID: 2-s2.0-85018961713ISBN: 978-3-85748-144-4 (print)OAI: oai:DiVA.org:ltu-60997DiVA: diva2:1055067
Conference
19th IABSE Congress, Strockholm, 21-23 September 2016
Note

EU FP6, Sjätte ramprogrammet

Available from: 2016-12-10 Created: 2016-12-10 Last updated: 2017-05-29Bibliographically approved

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CiteExportLink to record
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