Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges
In this paper, the use of Fast Falling Weight Deflectometer (Fast-FWD) is analyzed as a non-destructive and quick test procedure to evaluate the efficiency of short-span bridges. The Fast-FWD is an instrument that can produce a broadband dynamic force up to an impact value of 120 KN: The impact is c...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/4/1743 |
| _version_ | 1797396428866191360 |
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| author | Mauro Coni Fausto Mistretta Flavio Stochino James Rombi Mauro Sassu Mario Lucio Puppio |
| author_facet | Mauro Coni Fausto Mistretta Flavio Stochino James Rombi Mauro Sassu Mario Lucio Puppio |
| author_sort | Mauro Coni |
| collection | DOAJ |
| description | In this paper, the use of Fast Falling Weight Deflectometer (Fast-FWD) is analyzed as a non-destructive and quick test procedure to evaluate the efficiency of short-span bridges. The Fast-FWD is an instrument that can produce a broadband dynamic force up to an impact value of 120 KN: The impact is constant and replicable, providing accurate action measures of bridge stiffness in a truly short period (30 ms). In this paper, a single-span reinforced concrete bridge is investigated, using the Fast-FWD. The considered bridge, approximately 12.0 m long and 15.5 m wide, was in critical condition. The bridge is in a suburban principal road near to the City of Cagliari in Sardinia (Italy), with an Annual Average Daily Traffic of 13,500 vehicles/day, and was suddenly closed, creating serious problems for urban mobility. In these conditions, the investigation through other standard techniques is time-consuming and labor intensive. For this reason, it is important to introduce methods that can be rapid, accurate and cost-efficient. In this paper, bridge stiffness values obtained during the in situ experimental campaign were compared with finite element models values. The Fast-FWD has the potential to provide engineering information that can help us to better understand bridge condition, in a rapid and cost-effective procedure. |
| first_indexed | 2024-03-09T00:50:10Z |
| format | Article |
| id | doaj.art-08e7df316d4a4918a15cd094debee37f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T00:50:10Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-08e7df316d4a4918a15cd094debee37f2023-12-11T17:12:33ZengMDPI AGApplied Sciences2076-34172021-02-01114174310.3390/app11041743Fast Falling Weight Deflectometer Method for Condition Assessment of RC BridgesMauro Coni0Fausto Mistretta1Flavio Stochino2James Rombi3Mauro Sassu4Mario Lucio Puppio5Department of Civil Environmental Engineering and Architecture, University of Cagliari, 09124 Cagliari, ItalyDepartment of Civil Environmental Engineering and Architecture, University of Cagliari, 09124 Cagliari, ItalyDepartment of Civil Environmental Engineering and Architecture, University of Cagliari, 09124 Cagliari, ItalyDepartment of Civil Environmental Engineering and Architecture, University of Cagliari, 09124 Cagliari, ItalyDepartment of Civil Environmental Engineering and Architecture, University of Cagliari, 09124 Cagliari, ItalyDepartment of Civil Environmental Engineering and Architecture, University of Cagliari, 09124 Cagliari, ItalyIn this paper, the use of Fast Falling Weight Deflectometer (Fast-FWD) is analyzed as a non-destructive and quick test procedure to evaluate the efficiency of short-span bridges. The Fast-FWD is an instrument that can produce a broadband dynamic force up to an impact value of 120 KN: The impact is constant and replicable, providing accurate action measures of bridge stiffness in a truly short period (30 ms). In this paper, a single-span reinforced concrete bridge is investigated, using the Fast-FWD. The considered bridge, approximately 12.0 m long and 15.5 m wide, was in critical condition. The bridge is in a suburban principal road near to the City of Cagliari in Sardinia (Italy), with an Annual Average Daily Traffic of 13,500 vehicles/day, and was suddenly closed, creating serious problems for urban mobility. In these conditions, the investigation through other standard techniques is time-consuming and labor intensive. For this reason, it is important to introduce methods that can be rapid, accurate and cost-efficient. In this paper, bridge stiffness values obtained during the in situ experimental campaign were compared with finite element models values. The Fast-FWD has the potential to provide engineering information that can help us to better understand bridge condition, in a rapid and cost-effective procedure.https://www.mdpi.com/2076-3417/11/4/1743Fast Falling Weight Deflectometer (Fast-FWD)bridge health monitoringstructural responsenon-destructive testfinite element modelling |
| spellingShingle | Mauro Coni Fausto Mistretta Flavio Stochino James Rombi Mauro Sassu Mario Lucio Puppio Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges Applied Sciences Fast Falling Weight Deflectometer (Fast-FWD) bridge health monitoring structural response non-destructive test finite element modelling |
| title | Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges |
| title_full | Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges |
| title_fullStr | Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges |
| title_full_unstemmed | Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges |
| title_short | Fast Falling Weight Deflectometer Method for Condition Assessment of RC Bridges |
| title_sort | fast falling weight deflectometer method for condition assessment of rc bridges |
| topic | Fast Falling Weight Deflectometer (Fast-FWD) bridge health monitoring structural response non-destructive test finite element modelling |
| url | https://www.mdpi.com/2076-3417/11/4/1743 |
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