Enhanced Ultrasonic Inspection of Steel Bridge Pin Components

Report No: 99-R3

Published in 1998

About the report:

This report describes the development of a technique for obtaining a reliable assessment of the condition of steel bridge pins already determined by ultrasound to contain imperfections. The details of a technique for performing high-definition ultrasonic scans of pins in the field are described. Results demonstrating this technique on specially fabricated calibration pins with actual cracks and actual bridge pins in the field are presented. A mathematical model for tracing the propagation of ultrasonic sound rays is also described. This model can be used as a tool to help interpret scanned images of imperfect pins. The researchers recommend that future research be carried out to develop further the instrumentation equipment and models needed for accurate field assessment of steel bridge pins.

Disclaimer Statement:The contents of this report reflect the views of the author(s), who is responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Virginia Department of Transportation, the Commonwealth Transportation Board, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. Any inclusion of manufacturer names, trade names, or trademarks is for identification purposes only and is not to be considered an endorsement.

Authors

Other Authors

Margarit G. Lozev, Sanjiv D. Parikh, Paul A. Fuchs

Last updated: December 12, 2023

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