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Prolonging the Lifetime of Old Steel and Steel–Concrete Bridges: Assessment Procedures and Retrofitting Interventions
AP& P srl, Rovigo, Italy.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.ORCID-id: 0000-0002-8353-9225
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.ORCID-id: 0000-0003-1435-0071
2019 (engelsk)Inngår i: Structural Engineering International, ISSN 1016-8664, E-ISSN 1683-0350, Vol. 29, nr 4Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The structural analysis of existing bridges is not widely covered by the various codes and standards, resulting in the insecure and, in some cases, critical condition of this type of structure. Regarding national regulation, few states include compulsory codes that define the methods and procedures of inspection, assessment, maintenance and retrofitting of bridges. Although an accurate retrofitting procedure can prolong the life of an existing bridge, the more accurate management of national infrastructure assets can result in financial savings in the long term. This article deals with: (a) the assessment step-level procedure, (b) suggestions for bridge load tests and bridge categories, (c) bridge material analysis, (d) structural testing analysis, and (e) the main retrofitting interventions to prolong the life of existing steel and steel composite bridges. Furthermore, a representative case study is analysed and discussed, including examples of the retrofitting solutions implemented to prolong the service life of the bridge.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2019. Vol. 29, nr 4
Emneord [en]
steel bridges, composite bridges, multi-criteria decision analysis, existing bridges, inspection, assessment, retrofitting
HSV kategori
Forskningsprogram
Byggkonstruktion
Identifikatorer
URN: urn:nbn:se:ltu:diva-76127DOI: 10.1080/10168664.2019.1660602ISI: 000491251700001Scopus ID: 2-s2.0-85073994676OAI: oai:DiVA.org:ltu-76127DiVA, id: diva2:1354997
Merknad

Validerad;2019;Nivå 2;2019-11-19 (johcin)

Tilgjengelig fra: 2019-09-26 Laget: 2019-09-26 Sist oppdatert: 2019-11-19bibliografisk kontrollert

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