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Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review

The load-carrying capacity assessment of existing road bridges, is a growing challenge for civil engineers worldwide due to the age and condition of these critical parts of the infrastructure network. The critical loading event for road bridges is the live load; however, in earthquake-prone areas br...

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Autores principales: Skokandić, Dominik, Vlašić, Anđelko, Kušter Marić, Marija, Srbić, Mladen, Mandić Ivanković, Ana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999726/
https://www.ncbi.nlm.nih.gov/pubmed/35407855
http://dx.doi.org/10.3390/ma15072523
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author Skokandić, Dominik
Vlašić, Anđelko
Kušter Marić, Marija
Srbić, Mladen
Mandić Ivanković, Ana
author_facet Skokandić, Dominik
Vlašić, Anđelko
Kušter Marić, Marija
Srbić, Mladen
Mandić Ivanković, Ana
author_sort Skokandić, Dominik
collection PubMed
description The load-carrying capacity assessment of existing road bridges, is a growing challenge for civil engineers worldwide due to the age and condition of these critical parts of the infrastructure network. The critical loading event for road bridges is the live load; however, in earthquake-prone areas bridges generally require an additional seismic evaluation and often retrofitting in order to meet more stringent design codes. This paper provides a review of state-of-the-art methods for the seismic assessment and retrofitting of existing road bridges which are not covered by current design codes (Eurocode). The implementation of these methods is presented through two case studies in Croatia. The first case study is an example of how seismic assessment and retrofitting proposals should be conducted during a regular inspection. On the other hand, the second case study bridge is an example of an urgent assessment and temporary retrofit after a catastrophic earthquake. Both bridges were built in the 1960s and are located on state highways; the first one is a reinforced concrete bridge constructed monolithically on V-shaped piers, while the second is an older composite girder bridge located in Sisak-Moslavina County. The bridge was severely damaged during recent earthquakes in the county, requiring urgent assessment and subsequent strengthening of the substructure to prevent its collapse.
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spelling pubmed-89997262022-04-12 Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review Skokandić, Dominik Vlašić, Anđelko Kušter Marić, Marija Srbić, Mladen Mandić Ivanković, Ana Materials (Basel) Article The load-carrying capacity assessment of existing road bridges, is a growing challenge for civil engineers worldwide due to the age and condition of these critical parts of the infrastructure network. The critical loading event for road bridges is the live load; however, in earthquake-prone areas bridges generally require an additional seismic evaluation and often retrofitting in order to meet more stringent design codes. This paper provides a review of state-of-the-art methods for the seismic assessment and retrofitting of existing road bridges which are not covered by current design codes (Eurocode). The implementation of these methods is presented through two case studies in Croatia. The first case study is an example of how seismic assessment and retrofitting proposals should be conducted during a regular inspection. On the other hand, the second case study bridge is an example of an urgent assessment and temporary retrofit after a catastrophic earthquake. Both bridges were built in the 1960s and are located on state highways; the first one is a reinforced concrete bridge constructed monolithically on V-shaped piers, while the second is an older composite girder bridge located in Sisak-Moslavina County. The bridge was severely damaged during recent earthquakes in the county, requiring urgent assessment and subsequent strengthening of the substructure to prevent its collapse. MDPI 2022-03-30 /pmc/articles/PMC8999726/ /pubmed/35407855 http://dx.doi.org/10.3390/ma15072523 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Skokandić, Dominik
Vlašić, Anđelko
Kušter Marić, Marija
Srbić, Mladen
Mandić Ivanković, Ana
Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review
title Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review
title_full Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review
title_fullStr Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review
title_full_unstemmed Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review
title_short Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review
title_sort seismic assessment and retrofitting of existing road bridges: state of the art review
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999726/
https://www.ncbi.nlm.nih.gov/pubmed/35407855
http://dx.doi.org/10.3390/ma15072523
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