A Stress Measurement Method for Steel Strands Based on LC Oscillation
The prestress loss is one of the main factors affecting the safety of prestressed concrete structure. While the detecting signals like sound and light are difficult to spread in steel strands, there is no effective method for prestress detection of the bonded prestressed steel strands in existing st...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1584903 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545783780474880 |
|---|---|
| author | Dongjun Chen Benniu Zhang Xingxing Li Chong Tu Can Yuan Wenzhao Li Zhixiang Zhou Zongbao Liang |
| author_facet | Dongjun Chen Benniu Zhang Xingxing Li Chong Tu Can Yuan Wenzhao Li Zhixiang Zhou Zongbao Liang |
| author_sort | Dongjun Chen |
| collection | DOAJ |
| description | The prestress loss is one of the main factors affecting the safety of prestressed concrete structure. While the detecting signals like sound and light are difficult to spread in steel strands, there is no effective method for prestress detection of the bonded prestressed steel strands in existing structures yet. In this paper, taking into consideration that the electromagnetic oscillation characteristic can make the signal propagate effectively on the bonded prestressed steel strands, a nondestructive prestress detection method based on the electromagnetic effect to detect oscillation frequency is proposed. In a detection circuit, the steel strands are simulated as an inductance component, in which an induced electromagnetic signal passes through the steel strands to form resonance. And then, a frequency meter is used to detect the oscillation frequency of the resonant circuit. The oscillation frequency is supposed to have relationship with the prestress loading on the steel strands. A section of steel strands with a length of 1.2 m is adopted to test the correlation of stress and oscillation frequency. Both the theoretical and experimental results show that the resonant frequency of the circuit decreases with the increase of the stress of the strand and is linear in a certain range. |
| format | Article |
| id | doaj-art-5a98ce4a825a48e186b476d124b4ac2d |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5a98ce4a825a48e186b476d124b4ac2d2025-02-03T07:24:45ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/15849031584903A Stress Measurement Method for Steel Strands Based on LC OscillationDongjun Chen0Benniu Zhang1Xingxing Li2Chong Tu3Can Yuan4Wenzhao Li5Zhixiang Zhou6Zongbao Liang7Chongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaThe prestress loss is one of the main factors affecting the safety of prestressed concrete structure. While the detecting signals like sound and light are difficult to spread in steel strands, there is no effective method for prestress detection of the bonded prestressed steel strands in existing structures yet. In this paper, taking into consideration that the electromagnetic oscillation characteristic can make the signal propagate effectively on the bonded prestressed steel strands, a nondestructive prestress detection method based on the electromagnetic effect to detect oscillation frequency is proposed. In a detection circuit, the steel strands are simulated as an inductance component, in which an induced electromagnetic signal passes through the steel strands to form resonance. And then, a frequency meter is used to detect the oscillation frequency of the resonant circuit. The oscillation frequency is supposed to have relationship with the prestress loading on the steel strands. A section of steel strands with a length of 1.2 m is adopted to test the correlation of stress and oscillation frequency. Both the theoretical and experimental results show that the resonant frequency of the circuit decreases with the increase of the stress of the strand and is linear in a certain range.http://dx.doi.org/10.1155/2018/1584903 |
| spellingShingle | Dongjun Chen Benniu Zhang Xingxing Li Chong Tu Can Yuan Wenzhao Li Zhixiang Zhou Zongbao Liang A Stress Measurement Method for Steel Strands Based on LC Oscillation Advances in Materials Science and Engineering |
| title | A Stress Measurement Method for Steel Strands Based on LC Oscillation |
| title_full | A Stress Measurement Method for Steel Strands Based on LC Oscillation |
| title_fullStr | A Stress Measurement Method for Steel Strands Based on LC Oscillation |
| title_full_unstemmed | A Stress Measurement Method for Steel Strands Based on LC Oscillation |
| title_short | A Stress Measurement Method for Steel Strands Based on LC Oscillation |
| title_sort | stress measurement method for steel strands based on lc oscillation |
| url | http://dx.doi.org/10.1155/2018/1584903 |
| work_keys_str_mv | AT dongjunchen astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT benniuzhang astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT xingxingli astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT chongtu astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT canyuan astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT wenzhaoli astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT zhixiangzhou astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT zongbaoliang astressmeasurementmethodforsteelstrandsbasedonlcoscillation AT dongjunchen stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT benniuzhang stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT xingxingli stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT chongtu stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT canyuan stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT wenzhaoli stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT zhixiangzhou stressmeasurementmethodforsteelstrandsbasedonlcoscillation AT zongbaoliang stressmeasurementmethodforsteelstrandsbasedonlcoscillation |