Determining the presence of scour around bridge foundations using vehicle-induced vibrations
Bridge scour is the number one cause of failure in bridges located over waterways. Scour leads to rapid losses in foundation stiffness and can cause sudden collapse. Previous research on bridge health monitoring has used changes in natural frequency to identify damage in bridge beams. The possibilit...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Society of Civil Engineers
2016
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| Online Access: | https://eprints.nottingham.ac.uk/55018/ |
| _version_ | 1848799101968187392 |
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| author | Prendergast, Luke J. Hester, David Gavin, Kenneth |
| author_facet | Prendergast, Luke J. Hester, David Gavin, Kenneth |
| author_sort | Prendergast, Luke J. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Bridge scour is the number one cause of failure in bridges located over waterways. Scour leads to rapid losses in foundation stiffness and can cause sudden collapse. Previous research on bridge health monitoring has used changes in natural frequency to identify damage in bridge beams. The possibility of using a similar approach to identifying scour is investigated in this paper. To assess if this approach is feasible, it is necessary to establish how scour affects the natural frequency of a bridge, and if it is possible to measure changes in frequency using the bridge dynamic response to a passing vehicle. To address these questions, a novel vehicle–bridge–soil interaction (VBSI) model was developed. By carrying out a modal study in this model, it is shown that for a wide range of possible soil states, there is a clear reduction in the natural frequency of the first mode of the bridge with scour. Moreover, it is shown that the response signals on the bridge from vehicular loading are sufficient to allow these changes in frequency to be detected. |
| first_indexed | 2025-11-14T20:30:19Z |
| format | Article |
| id | nottingham-55018 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:30:19Z |
| publishDate | 2016 |
| publisher | American Society of Civil Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-550182018-09-18T07:47:07Z https://eprints.nottingham.ac.uk/55018/ Determining the presence of scour around bridge foundations using vehicle-induced vibrations Prendergast, Luke J. Hester, David Gavin, Kenneth Bridge scour is the number one cause of failure in bridges located over waterways. Scour leads to rapid losses in foundation stiffness and can cause sudden collapse. Previous research on bridge health monitoring has used changes in natural frequency to identify damage in bridge beams. The possibility of using a similar approach to identifying scour is investigated in this paper. To assess if this approach is feasible, it is necessary to establish how scour affects the natural frequency of a bridge, and if it is possible to measure changes in frequency using the bridge dynamic response to a passing vehicle. To address these questions, a novel vehicle–bridge–soil interaction (VBSI) model was developed. By carrying out a modal study in this model, it is shown that for a wide range of possible soil states, there is a clear reduction in the natural frequency of the first mode of the bridge with scour. Moreover, it is shown that the response signals on the bridge from vehicular loading are sufficient to allow these changes in frequency to be detected. American Society of Civil Engineers 2016-10 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/55018/1/JBridgeEng_ScourPaper_Repository.pdf Prendergast, Luke J., Hester, David and Gavin, Kenneth (2016) Determining the presence of scour around bridge foundations using vehicle-induced vibrations. Journal of Bridge Engineering, 21 (10). 04016065. ISSN 1943-5592 http://dx.doi.org/10.1061/(ASCE)BE.1943-5592.0000931 doi:10.1061/(ASCE)BE.1943-5592.0000931 doi:10.1061/(ASCE)BE.1943-5592.0000931 |
| spellingShingle | Prendergast, Luke J. Hester, David Gavin, Kenneth Determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| title | Determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| title_full | Determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| title_fullStr | Determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| title_full_unstemmed | Determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| title_short | Determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| title_sort | determining the presence of scour around bridge foundations using vehicle-induced vibrations |
| url | https://eprints.nottingham.ac.uk/55018/ https://eprints.nottingham.ac.uk/55018/ https://eprints.nottingham.ac.uk/55018/ |