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Proceedings Paper

Ultrasonic measurement of applied stress in structural members
Author(s): Efrain A. Mandracchia
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Paper Abstract

In order to assess the structural integrity of bridges, an accurate and cost effective measurement technology is required to ensure their safe and reliable operation. Over 60,000 of the nation's steel highway bridges have been classified as structurally deficient. The objective of this paper is to assess the applicability of a new ultrasonic measurement technology as an effective measurement technique and viable tool for the structural engineering community. Laboratory tests comparing the ultrasonic and traditional strain gage measurement technique show a correlation coefficient of 0.993. Preliminary field test data collected on a portside crane compare both measurement technolgies. The resulting conclusion is that the ultrasonic technique is comparable in performance to the traditional strain gage measurment technolgy, and offers a portable, cost effective method for evaluating bridge, crane, and other types of structural members.

Paper Details

Date Published: 19 May 1995
PDF: 5 pages
Proc. SPIE 2456, Nondestructive Evaluation of Aging Bridges and Highways, (19 May 1995); doi: 10.1117/12.209777
Show Author Affiliations
Efrain A. Mandracchia, Sonic Force Corp. (United States)

Published in SPIE Proceedings Vol. 2456:
Nondestructive Evaluation of Aging Bridges and Highways
Steven B. Chase, Editor(s)

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