Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System
Early detection of crack is critical for the maintenance of reinforced concrete (RC) structures. In this study, a distributed optical fiber (DOF) sensing system with Rayleigh Optical Frequency Domain Reflectometry (OFDR) technique was deployed to a member of RC structure in a full-scale laboratory e...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8312487 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832554073249808384 |
|---|---|
| author | Tingjin Liu Honghao Huang Yubing Yang |
| author_facet | Tingjin Liu Honghao Huang Yubing Yang |
| author_sort | Tingjin Liu |
| collection | DOAJ |
| description | Early detection of crack is critical for the maintenance of reinforced concrete (RC) structures. In this study, a distributed optical fiber (DOF) sensing system with Rayleigh Optical Frequency Domain Reflectometry (OFDR) technique was deployed to a member of RC structure in a full-scale laboratory experiment, which was subjected to a monotonic lateral load. With the aid of a high space resolution (up to 1 mm) and measurement accuracy (±1 micro strain) interrogator (OSI-S by Semicon), continuous strain measurements inside of the RC member are elaborately implemented. The result of crack detection by the analysis of the measured tensile strain profiles is in excellent agreement with the visually observable cracks mapped during the test. This confirms the ability of the optical fiber inside of RC members to capture cracks on concrete surface. Moreover, the recognition of crack orientation and depth is accomplished by comparing strain measurements of optical fibers installed at multiple locations. |
| format | Article |
| id | doaj-art-31c12aac681b43e594a8f9f222a304ab |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-31c12aac681b43e594a8f9f222a304ab2025-02-03T05:52:28ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/83124878312487Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing SystemTingjin Liu0Honghao Huang1Yubing Yang2South China Institute of Geotechnical Engineering, State Key Laboratory of Subtropical Building Science, South China University of Technology (SCUT), Guangzhou 510640, ChinaSchool of Civil Engineering and Transportation, South China University of Technology (SCUT), Guangzhou 510640, ChinaCollege of Water Conservancy and Civil Engineering, South China Agricultural University (SCAU), Guangzhou 510642, ChinaEarly detection of crack is critical for the maintenance of reinforced concrete (RC) structures. In this study, a distributed optical fiber (DOF) sensing system with Rayleigh Optical Frequency Domain Reflectometry (OFDR) technique was deployed to a member of RC structure in a full-scale laboratory experiment, which was subjected to a monotonic lateral load. With the aid of a high space resolution (up to 1 mm) and measurement accuracy (±1 micro strain) interrogator (OSI-S by Semicon), continuous strain measurements inside of the RC member are elaborately implemented. The result of crack detection by the analysis of the measured tensile strain profiles is in excellent agreement with the visually observable cracks mapped during the test. This confirms the ability of the optical fiber inside of RC members to capture cracks on concrete surface. Moreover, the recognition of crack orientation and depth is accomplished by comparing strain measurements of optical fibers installed at multiple locations.http://dx.doi.org/10.1155/2020/8312487 |
| spellingShingle | Tingjin Liu Honghao Huang Yubing Yang Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System Advances in Civil Engineering |
| title | Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System |
| title_full | Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System |
| title_fullStr | Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System |
| title_full_unstemmed | Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System |
| title_short | Crack Detection of Reinforced Concrete Member Using Rayleigh-Based Distributed Optic Fiber Strain Sensing System |
| title_sort | crack detection of reinforced concrete member using rayleigh based distributed optic fiber strain sensing system |
| url | http://dx.doi.org/10.1155/2020/8312487 |
| work_keys_str_mv | AT tingjinliu crackdetectionofreinforcedconcretememberusingrayleighbaseddistributedopticfiberstrainsensingsystem AT honghaohuang crackdetectionofreinforcedconcretememberusingrayleighbaseddistributedopticfiberstrainsensingsystem AT yubingyang crackdetectionofreinforcedconcretememberusingrayleighbaseddistributedopticfiberstrainsensingsystem |