Dynamic Characterization of Prestressed Rods in Stressed Timber Systems
Publication: Journal of Structural Engineering
Volume 119, Issue 10
Abstract
Analytical and experimental approaches are presented to monitor the tension levels in posttensioned high‐strength steel rods of stressed‐timber systems. The dynamic response of these rods under an impact load is correlated with the rod tension. The dominant frequencies of the rod stressed to different tension levels are consistently distinguishable. An increase in frequency is consistently observed with increases in the rod tension levels. An analytical relation is developed to correlate the dominant frequencies to the tension level in the rod. The proposed technique can predict the tension levels with a 85–90% accuracy of the experimental results. The nondestructive approach proposed herein is intended for future use in structural inspection of stressed timber bridges.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 10 • October 1993
Pages: 3069 - 3087
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jun 20, 1991
Published online: Oct 1, 1993
Published in print: Oct 1993
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