Dynamic Behaviour and Seismic Response of Scoured Bridge Piers
This study explores the transverse response of bridge piers in riverbeds under a multi-hazard scenario, involving seismic actions and scoured foundations. The combined impact of scour on foundations’ stability and on the dynamic stiffness of soil–foundation systems makes bridges more susceptible to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/10/4/75 |
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| author | Christos Antonopoulos Enrico Tubaldi Sandro Carbonari Fabrizio Gara Francesca Dezi |
| author_facet | Christos Antonopoulos Enrico Tubaldi Sandro Carbonari Fabrizio Gara Francesca Dezi |
| author_sort | Christos Antonopoulos |
| collection | DOAJ |
| description | This study explores the transverse response of bridge piers in riverbeds under a multi-hazard scenario, involving seismic actions and scoured foundations. The combined impact of scour on foundations’ stability and on the dynamic stiffness of soil–foundation systems makes bridges more susceptible to earthquake damage. While previous research has extensively investigated this issue for bridges founded on piles, this work addresses the less explored but critical scenario of bridges on shallow foundations, typical of existing bridges. A comprehensive soil–foundation structure model is developed to be representative of the transverse response of multi-span and continuous girder bridges, and the effects of different scour scenarios and foundation embedment on the dynamic stiffness of the soil–foundation sub-systems are investigated through refined finite element models. Then, a parametric investigation is conducted to assess the effects of scour on the dynamic properties of the systems and, for some representative bridge prototypes, the seismic response at scoured and non-scoured conditions are compared considering real earthquakes. The research results demonstrate the significance of scour effects on the dynamic properties of the soil–foundation structure system and on the displacement demand of the bridge decks. |
| format | Article |
| id | doaj-art-b83aaba64b4540f1be9e340bb2ba8743 |
| institution | DOAJ |
| issn | 2412-3811 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Infrastructures |
| spelling | doaj-art-b83aaba64b4540f1be9e340bb2ba87432025-08-20T03:13:32ZengMDPI AGInfrastructures2412-38112025-03-011047510.3390/infrastructures10040075Dynamic Behaviour and Seismic Response of Scoured Bridge PiersChristos Antonopoulos0Enrico Tubaldi1Sandro Carbonari2Fabrizio Gara3Francesca Dezi4Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UKDepartment of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UKDepartment of Construction, Civil Engineering and Architecture (DICEA), Università Politecnica delle Marche, 60131 Ancona, ItalyDepartment of Construction, Civil Engineering and Architecture (DICEA), Università Politecnica delle Marche, 60131 Ancona, ItalySchool of Science and Technology—Geology Section, University of Camerino, 62032 Camerino, ItalyThis study explores the transverse response of bridge piers in riverbeds under a multi-hazard scenario, involving seismic actions and scoured foundations. The combined impact of scour on foundations’ stability and on the dynamic stiffness of soil–foundation systems makes bridges more susceptible to earthquake damage. While previous research has extensively investigated this issue for bridges founded on piles, this work addresses the less explored but critical scenario of bridges on shallow foundations, typical of existing bridges. A comprehensive soil–foundation structure model is developed to be representative of the transverse response of multi-span and continuous girder bridges, and the effects of different scour scenarios and foundation embedment on the dynamic stiffness of the soil–foundation sub-systems are investigated through refined finite element models. Then, a parametric investigation is conducted to assess the effects of scour on the dynamic properties of the systems and, for some representative bridge prototypes, the seismic response at scoured and non-scoured conditions are compared considering real earthquakes. The research results demonstrate the significance of scour effects on the dynamic properties of the soil–foundation structure system and on the displacement demand of the bridge decks.https://www.mdpi.com/2412-3811/10/4/75scour effectssoil–foundation interactionshallow foundationsbridge piersseismic responsesoil–structure interaction |
| spellingShingle | Christos Antonopoulos Enrico Tubaldi Sandro Carbonari Fabrizio Gara Francesca Dezi Dynamic Behaviour and Seismic Response of Scoured Bridge Piers Infrastructures scour effects soil–foundation interaction shallow foundations bridge piers seismic response soil–structure interaction |
| title | Dynamic Behaviour and Seismic Response of Scoured Bridge Piers |
| title_full | Dynamic Behaviour and Seismic Response of Scoured Bridge Piers |
| title_fullStr | Dynamic Behaviour and Seismic Response of Scoured Bridge Piers |
| title_full_unstemmed | Dynamic Behaviour and Seismic Response of Scoured Bridge Piers |
| title_short | Dynamic Behaviour and Seismic Response of Scoured Bridge Piers |
| title_sort | dynamic behaviour and seismic response of scoured bridge piers |
| topic | scour effects soil–foundation interaction shallow foundations bridge piers seismic response soil–structure interaction |
| url | https://www.mdpi.com/2412-3811/10/4/75 |
| work_keys_str_mv | AT christosantonopoulos dynamicbehaviourandseismicresponseofscouredbridgepiers AT enricotubaldi dynamicbehaviourandseismicresponseofscouredbridgepiers AT sandrocarbonari dynamicbehaviourandseismicresponseofscouredbridgepiers AT fabriziogara dynamicbehaviourandseismicresponseofscouredbridgepiers AT francescadezi dynamicbehaviourandseismicresponseofscouredbridgepiers |