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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 tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.ORCID-id: 0000-0002-8682-876X
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.ORCID-id: 0000-0002-5154-7044
Vise andre og tillknytning
Rekke forfattare: 82016 (engelsk)Inngår i: 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, s. 2527-2535Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
CH - 8093 Zürich, Switzerland: International Association for Bridge and Structural Engineering, 2016. s. 2527-2535
Serie
IABSE Congress Reports
Emneord [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.
HSV kategori
Forskningsprogram
Konstruktionsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-60997Scopus ID: 2-s2.0-85018961713ISBN: 978-3-85748-144-4 (tryckt)OAI: oai:DiVA.org:ltu-60997DiVA, id: diva2:1055067
Konferanse
19th IABSE Congress, Strockholm, 21-23 September 2016
Merknad

EU FP6, Sjätte ramprogrammet

Tilgjengelig fra: 2016-12-10 Laget: 2016-12-10 Sist oppdatert: 2018-03-27bibliografisk kontrollert

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Sas, GabrielBlanksvärd, ThomasOhlsson, UlfBernspång, LarsTäljsten, BjörnElfgren, Lennart

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