Abstract
Three defective ASTM A 514 steel splice plates were discovered on the I-275 Combs-Hehl twin bridges over the Ohio River. A follow-on in-depth field inspection of 1,356 A 514 steel plates on the bridges revealed 14 additional defective gusset and splice plates. The A 514 steel was improperly heat-treated resulting in a brittle crack-prone microstructure. Ultrasonic and impact hardness tests were used to identify the defective steel. Subsequently, the defective steel plates were either removed or lapped with additional steel plates.
Report Date
3-2010
Report Number
KTC-10-11/KH60-07-1F
Digital Object Identifier
http://dx.doi.org/10.13023/KTC.RR.2010.11
Repository Citation
Hopwood, Theodore II and Palle, Sudhir, "Nondestructive Testing of Defective ASTM A 514 Steel on the I ‐ 275 Combs‐Hehl Twin Bridges over the Ohio River in Campbell County, Kentucky" (2010). Kentucky Transportation Center Research Report. 54.
https://uknowledge.uky.edu/ktc_researchreports/54
Notes
The contents of this report reflect the views of the authors, who are responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views or the policies of the University of Kentucky, the Kentucky Transportation Center, nor the Federal Highway Administration. This report does not constitute a standard, specification, or regulation.