A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement
Bridge deformation consists of cross-section rotation and deflection, which are crucial parameters for bridge capacity evaluation and damage detection. The maximum value of deflection usually happens at mid-span while for rotation it happens at two-ends. Therefore, compared with deflection, rotation...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/7/2715 |
| _version_ | 1797437663610929152 |
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| author | De Zhou Ningbo Wang Chaofeng Fu Chuanrui Guo Yangping Zhao |
| author_facet | De Zhou Ningbo Wang Chaofeng Fu Chuanrui Guo Yangping Zhao |
| author_sort | De Zhou |
| collection | DOAJ |
| description | Bridge deformation consists of cross-section rotation and deflection, which are crucial parameters for bridge capacity evaluation and damage detection. The maximum value of deflection usually happens at mid-span while for rotation it happens at two-ends. Therefore, compared with deflection, rotation is more convenient for in-situ measurement since the bridge pier can be the reference point. In this study, a high-precision inclinometer for bridge rotation measurement was conceptualized, designed, and validated. The proposed inclinometer converted the small rotation of bridge section into the deformation of an elastomer. Strain gauges were then utilized to measure the elastomer deformation and thus the bridge rotation can be obtained. The dimensions and modulus of the elastomer were designed and chosen based on the theoretical analysis. Characteristics of the inclinometer were calibrated in lab and in-situ experiments at an in-service bridge were conducted to validate its feasibility and robustness. Test results showed that the proposed inclinometer had excellent performance in resolution and accuracy, which indicate its great potential for future bridge health monitoring. |
| first_indexed | 2024-03-09T11:25:41Z |
| format | Article |
| id | doaj.art-b7dad0f5b89147feb95367dd8398a72a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T11:25:41Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b7dad0f5b89147feb95367dd8398a72a2023-12-01T00:04:07ZengMDPI AGSensors1424-82202022-04-01227271510.3390/s22072715A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation MeasurementDe Zhou0Ningbo Wang1Chaofeng Fu2Chuanrui Guo3Yangping Zhao4School of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaInstitute of Urban Smart Transportation & Safety Maintenance, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaInstitute of Urban Smart Transportation & Safety Maintenance, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaBridge deformation consists of cross-section rotation and deflection, which are crucial parameters for bridge capacity evaluation and damage detection. The maximum value of deflection usually happens at mid-span while for rotation it happens at two-ends. Therefore, compared with deflection, rotation is more convenient for in-situ measurement since the bridge pier can be the reference point. In this study, a high-precision inclinometer for bridge rotation measurement was conceptualized, designed, and validated. The proposed inclinometer converted the small rotation of bridge section into the deformation of an elastomer. Strain gauges were then utilized to measure the elastomer deformation and thus the bridge rotation can be obtained. The dimensions and modulus of the elastomer were designed and chosen based on the theoretical analysis. Characteristics of the inclinometer were calibrated in lab and in-situ experiments at an in-service bridge were conducted to validate its feasibility and robustness. Test results showed that the proposed inclinometer had excellent performance in resolution and accuracy, which indicate its great potential for future bridge health monitoring.https://www.mdpi.com/1424-8220/22/7/2715inclinometerbridge rotationelastomerhealth monitoringultrasensitive measurement |
| spellingShingle | De Zhou Ningbo Wang Chaofeng Fu Chuanrui Guo Yangping Zhao A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement Sensors inclinometer bridge rotation elastomer health monitoring ultrasensitive measurement |
| title | A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement |
| title_full | A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement |
| title_fullStr | A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement |
| title_full_unstemmed | A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement |
| title_short | A Novel Elastomer-Based Inclinometer for Ultrasensitive Bridge Rotation Measurement |
| title_sort | novel elastomer based inclinometer for ultrasensitive bridge rotation measurement |
| topic | inclinometer bridge rotation elastomer health monitoring ultrasensitive measurement |
| url | https://www.mdpi.com/1424-8220/22/7/2715 |
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