Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot

Sung Keun Park, J. W. Kim, M. J. Nam, J. J. Lee, H. N. Ho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The steel cables are frequently used for various infrastructures. Especially, the steel cables in long span bridges such as cable stayed bridges and suspension bridges are critical members which suspend dead loads due to both the main girders and floor slabs. Damage at cable members can occur in the form of cross-sectional loss caused by corrosion and/or fracture, which can lead to structural failure due to concentrated stress of the cable. Therefore, nondestructive evaluation (NDE) of steel cables is needed so any cross-sectional damage can be detected. This study proposes a steel cable health monitoring technique using an elasto-magnetic (E/M) sensor installed in a cable climbing robot. The E/M sensor is applied to detect the cross-sectional loss in this study while it was originally developed for measuring the tensile force in the previous works. To verify the feasibility of the proposed damage detection technique, a series of experimental studies were performed. Firstly, a steel bars with 4-different diameters were fabricated and their output voltage values were obtained by the E/M sensor. The optimal input voltage and working point were chosen to ensure the linearity and resolution of the results through the repeated experiments. And then, the E/M sensor measured the output voltage values at the damage points of the steel bar specimen under the applied external and inner damage conditions based on the selected optimal experimental conditions. A final experiment was carried out with a steel cable which has corrosion damages to examine the capabilities of corrosion damage detection using E/M sensor, likewise experiments with steel bar specimen. This E/M sensor based monitoring technique will be incorporated into the cable climbing robot in the near further so that the proposed approach can be an effective automated NDE tool for steel cable health monitoring.

Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
Pages1152-1157
Number of pages6
Publication statusPublished - 2012 Jul 23
Externally publishedYes
Event6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 - Stresa, Lake Maggiore, Italy
Duration: 2012 Jul 82012 Jul 12

Other

Other6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
CountryItaly
CityStresa, Lake Maggiore
Period12/7/812/7/12

Fingerprint

Magnetic sensors
Cables
Robots
Corrosion
Defects
Steel
Damage detection
Monitoring
Electric potential
Health
Suspension bridges
Cable stayed bridges
Beams and girders
Experiments

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Park, S. K., Kim, J. W., Nam, M. J., Lee, J. J., & Ho, H. N. (2012). Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot. In Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management (pp. 1152-1157)

Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot. / Park, Sung Keun; Kim, J. W.; Nam, M. J.; Lee, J. J.; Ho, H. N.

Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. 2012. p. 1152-1157.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Park, SK, Kim, JW, Nam, MJ, Lee, JJ & Ho, HN 2012, Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot. in Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. pp. 1152-1157, 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012, Stresa, Lake Maggiore, Italy, 12/7/8.
Park SK, Kim JW, Nam MJ, Lee JJ, Ho HN. Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot. In Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. 2012. p. 1152-1157
Park, Sung Keun ; Kim, J. W. ; Nam, M. J. ; Lee, J. J. ; Ho, H. N. / Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot. Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. 2012. pp. 1152-1157
@inproceedings{c1dbbe972860443cb5dd4bdcde46b9f7,
title = "Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot",
abstract = "The steel cables are frequently used for various infrastructures. Especially, the steel cables in long span bridges such as cable stayed bridges and suspension bridges are critical members which suspend dead loads due to both the main girders and floor slabs. Damage at cable members can occur in the form of cross-sectional loss caused by corrosion and/or fracture, which can lead to structural failure due to concentrated stress of the cable. Therefore, nondestructive evaluation (NDE) of steel cables is needed so any cross-sectional damage can be detected. This study proposes a steel cable health monitoring technique using an elasto-magnetic (E/M) sensor installed in a cable climbing robot. The E/M sensor is applied to detect the cross-sectional loss in this study while it was originally developed for measuring the tensile force in the previous works. To verify the feasibility of the proposed damage detection technique, a series of experimental studies were performed. Firstly, a steel bars with 4-different diameters were fabricated and their output voltage values were obtained by the E/M sensor. The optimal input voltage and working point were chosen to ensure the linearity and resolution of the results through the repeated experiments. And then, the E/M sensor measured the output voltage values at the damage points of the steel bar specimen under the applied external and inner damage conditions based on the selected optimal experimental conditions. A final experiment was carried out with a steel cable which has corrosion damages to examine the capabilities of corrosion damage detection using E/M sensor, likewise experiments with steel bar specimen. This E/M sensor based monitoring technique will be incorporated into the cable climbing robot in the near further so that the proposed approach can be an effective automated NDE tool for steel cable health monitoring.",
author = "Park, {Sung Keun} and Kim, {J. W.} and Nam, {M. J.} and Lee, {J. J.} and Ho, {H. N.}",
year = "2012",
month = "7",
day = "23",
language = "English",
isbn = "9780415621243",
pages = "1152--1157",
booktitle = "Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management",

}

TY - GEN

T1 - Real-time steel cable NDE for corrosion defects using E/M sensors installed in a cable climbing robot

AU - Park, Sung Keun

AU - Kim, J. W.

AU - Nam, M. J.

AU - Lee, J. J.

AU - Ho, H. N.

PY - 2012/7/23

Y1 - 2012/7/23

N2 - The steel cables are frequently used for various infrastructures. Especially, the steel cables in long span bridges such as cable stayed bridges and suspension bridges are critical members which suspend dead loads due to both the main girders and floor slabs. Damage at cable members can occur in the form of cross-sectional loss caused by corrosion and/or fracture, which can lead to structural failure due to concentrated stress of the cable. Therefore, nondestructive evaluation (NDE) of steel cables is needed so any cross-sectional damage can be detected. This study proposes a steel cable health monitoring technique using an elasto-magnetic (E/M) sensor installed in a cable climbing robot. The E/M sensor is applied to detect the cross-sectional loss in this study while it was originally developed for measuring the tensile force in the previous works. To verify the feasibility of the proposed damage detection technique, a series of experimental studies were performed. Firstly, a steel bars with 4-different diameters were fabricated and their output voltage values were obtained by the E/M sensor. The optimal input voltage and working point were chosen to ensure the linearity and resolution of the results through the repeated experiments. And then, the E/M sensor measured the output voltage values at the damage points of the steel bar specimen under the applied external and inner damage conditions based on the selected optimal experimental conditions. A final experiment was carried out with a steel cable which has corrosion damages to examine the capabilities of corrosion damage detection using E/M sensor, likewise experiments with steel bar specimen. This E/M sensor based monitoring technique will be incorporated into the cable climbing robot in the near further so that the proposed approach can be an effective automated NDE tool for steel cable health monitoring.

AB - The steel cables are frequently used for various infrastructures. Especially, the steel cables in long span bridges such as cable stayed bridges and suspension bridges are critical members which suspend dead loads due to both the main girders and floor slabs. Damage at cable members can occur in the form of cross-sectional loss caused by corrosion and/or fracture, which can lead to structural failure due to concentrated stress of the cable. Therefore, nondestructive evaluation (NDE) of steel cables is needed so any cross-sectional damage can be detected. This study proposes a steel cable health monitoring technique using an elasto-magnetic (E/M) sensor installed in a cable climbing robot. The E/M sensor is applied to detect the cross-sectional loss in this study while it was originally developed for measuring the tensile force in the previous works. To verify the feasibility of the proposed damage detection technique, a series of experimental studies were performed. Firstly, a steel bars with 4-different diameters were fabricated and their output voltage values were obtained by the E/M sensor. The optimal input voltage and working point were chosen to ensure the linearity and resolution of the results through the repeated experiments. And then, the E/M sensor measured the output voltage values at the damage points of the steel bar specimen under the applied external and inner damage conditions based on the selected optimal experimental conditions. A final experiment was carried out with a steel cable which has corrosion damages to examine the capabilities of corrosion damage detection using E/M sensor, likewise experiments with steel bar specimen. This E/M sensor based monitoring technique will be incorporated into the cable climbing robot in the near further so that the proposed approach can be an effective automated NDE tool for steel cable health monitoring.

UR - http://www.scopus.com/inward/record.url?scp=84863887540&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863887540&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9780415621243

SP - 1152

EP - 1157

BT - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management

ER -