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Health Monitoring of the Steel Cables Using the Elasto-Magnetic Method

[+] Author Affiliations
P. Fabo, A. Jarosevic

Comenius University, Bratislava, Slovakia

M. Chandoga

Projstar PK, Ltd., Bratislava, Slovakia

Paper No. IMECE2002-33943, pp. 295-299; 5 pages
doi:10.1115/IMECE2002-33943
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Adaptive Structures and Materials Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Aerospace Division
  • ISBN: 0-7918-3625-8 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

The EM method is a valuable tool for Civil Engineering for estimation of the real stress in the prestressing tendons, quality control during construction period, calculating the stress loss due to friction and relaxation, long-time monitoring of stress changes due to concrete creep, temperature changes, traffic load etc. Overview of EM technique with practical applications in the Civil Engineering is presented. The new generation of EM measuring devices is based on more than 15 years experience, including health monitoring systems for the nuclear power plant and a large span cable stayed and suspension bridges. Examples of laboratory and field tests are presented, including uncertainty of stress measurement, long-time stability, resolution and reliability.

Copyright © 2002 by ASME
Topics: Steel , Cables

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