Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle
For bridges with surface foundations, scour is one of the main reasons for bridge failures. In regard to structural health monitoring, vibration-based scour detection techniques have received increasing attention over the past two decades. Scour occurs below the water surface in rivers or sea, leadi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/13/3106 |
| _version_ | 1827625427194085376 |
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| author | Bin Zhang Hua Zhao Chengjun Tan Eugene J. OBrien Paul C. Fitzgerald Chul-Woo Kim |
| author_facet | Bin Zhang Hua Zhao Chengjun Tan Eugene J. OBrien Paul C. Fitzgerald Chul-Woo Kim |
| author_sort | Bin Zhang |
| collection | DOAJ |
| description | For bridges with surface foundations, scour is one of the main reasons for bridge failures. In regard to structural health monitoring, vibration-based scour detection techniques have received increasing attention over the past two decades. Scour occurs below the water surface in rivers or sea, leading to difficulty in equipment installation and maintenance. Recently, the concept of “drive-by” SHM using the indirect measurement of passing vehicle responses has been developed rapidly due to its convenience and low cost. This paper proposes a method to detect scour using the vehicle responses under an operational vehicle speed. The wavelet transform was applied to vehicle accelerations to obtain the wavelet energy. It was found that the wavelet energy increases with the increase in the scour damage level. However, the wavelet energy may also be affected by the on-site operating environments, such as sensor noise and other variabilities, which interferes with the identification of scour in practice. Hence, in this work, a statistical-wavelet-based approach was presented to effectively detect the presence of scour and even its location. The feasibility of the proposed approach is verified in both numerical simulation and lab experiments. The results show that the proposed method has a good potential to detect scour using indirect measurements. |
| first_indexed | 2024-03-09T12:36:38Z |
| format | Article |
| id | doaj.art-1d487de85c91478a914e4cf564a04492 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T12:36:38Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-1d487de85c91478a914e4cf564a044922023-11-30T22:23:07ZengMDPI AGRemote Sensing2072-42922022-06-011413310610.3390/rs14133106Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing VehicleBin Zhang0Hua Zhao1Chengjun Tan2Eugene J. OBrien3Paul C. Fitzgerald4Chul-Woo Kim5Key Laboratory for Wind and Bridge Engineering of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, ChinaKey Laboratory for Wind and Bridge Engineering of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, ChinaKey Laboratory for Wind and Bridge Engineering of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, ChinaDepartment of Civil Engineering, University College Dublin, D04 V1W8 Dublin, IrelandDepartment of Civil Engineering, University College Dublin, D04 V1W8 Dublin, IrelandDepartment of Civil and Earth Resources Engineering, Kyoto University, Kyoto 615-8530, JapanFor bridges with surface foundations, scour is one of the main reasons for bridge failures. In regard to structural health monitoring, vibration-based scour detection techniques have received increasing attention over the past two decades. Scour occurs below the water surface in rivers or sea, leading to difficulty in equipment installation and maintenance. Recently, the concept of “drive-by” SHM using the indirect measurement of passing vehicle responses has been developed rapidly due to its convenience and low cost. This paper proposes a method to detect scour using the vehicle responses under an operational vehicle speed. The wavelet transform was applied to vehicle accelerations to obtain the wavelet energy. It was found that the wavelet energy increases with the increase in the scour damage level. However, the wavelet energy may also be affected by the on-site operating environments, such as sensor noise and other variabilities, which interferes with the identification of scour in practice. Hence, in this work, a statistical-wavelet-based approach was presented to effectively detect the presence of scour and even its location. The feasibility of the proposed approach is verified in both numerical simulation and lab experiments. The results show that the proposed method has a good potential to detect scour using indirect measurements.https://www.mdpi.com/2072-4292/14/13/3106bridge scourindirect measurementwavelet energyvibrationSHMvehicle and bridge interaction |
| spellingShingle | Bin Zhang Hua Zhao Chengjun Tan Eugene J. OBrien Paul C. Fitzgerald Chul-Woo Kim Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle Remote Sensing bridge scour indirect measurement wavelet energy vibration SHM vehicle and bridge interaction |
| title | Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle |
| title_full | Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle |
| title_fullStr | Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle |
| title_full_unstemmed | Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle |
| title_short | Laboratory Investigation on Detecting Bridge Scour Using the Indirect Measurement from a Passing Vehicle |
| title_sort | laboratory investigation on detecting bridge scour using the indirect measurement from a passing vehicle |
| topic | bridge scour indirect measurement wavelet energy vibration SHM vehicle and bridge interaction |
| url | https://www.mdpi.com/2072-4292/14/13/3106 |
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