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Proceedings Article

Development of structural health monitoring systems for railroad bridge testbeds

[+] Author Affiliations
Hyun-Jun Park, Jiyoung Min, Chung-Bang Yun

KAIST (Korea, Republic of)

Min-Ho Shin

Korea Railroad Research Institute (Korea, Republic of)

Yong-Su Kim

Korea Infrastructure Safety and Technology Corp. (Korea, Republic of)

Su-Yeol Park

Korea Maintenance Co. Ltd. (Korea, Republic of)

Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79812D (April 14, 2011); doi:10.1117/12.881897
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From Conference Volume 7981

  • Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
  • Masayoshi Tomizuka
  • San Diego, California, USA | March 06, 2011

abstract

Recently a challenging project has been carried out for construction of a national network for safety management and monitoring of civil infrastructures in Korea. As a part of the project, structural health monitoring (SHM) systems have been established on railroad bridges employing various types of sensors such as accelerometers, optical fiber sensors, and piezoelectric sensors. This paper presents the current status of railroad bridge health monitoring testbeds. Emerging sensors and monitoring technologies are under investigation. They are local damage detection using PZT-based electro-mechanical impedances; vibration-based global monitoring using accelerations, FBG-based dynamic strains; and wireless sensor data acquisition systems. The monitoring systems provide real-time measurements under train-transit and environmental loadings, and can be remotely accessible and controllable via the web. Long-term behaviors of the railroad bridge testbeds are investigated, and guidelines for safety management are to be established by combining numerical analysis and signal processing of the measured data.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Hyun-Jun Park ; Jiyoung Min ; Chung-Bang Yun ; Min-Ho Shin ; Yong-Su Kim, et al.
"Development of structural health monitoring systems for railroad bridge testbeds", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79812D (April 14, 2011); doi:10.1117/12.881897; http://dx.doi.org/10.1117/12.881897


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