Nondestructive testing of defective ASTM A 514 steel on the I-275 Combs-Hehl twin bridges over the Ohio River in Campbell County, Kentucky.

Hopwood II, Theodore; Palle, Sudhir

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Nondestructive testing of defective ASTM A 514 steel on the I-275 Combs-Hehl twin bridges over the Ohio River in Campbell County, Kentucky.

2010-03-01
By Hopwood II, Theodore ; Palle, Sudhir

File Language:

English

Details

Creators:

Hopwood II, Theodore ; Palle, Sudhir
Corporate Creators:

University of Kentucky Transportation Center
Corporate Contributors:

Kentucky. Transportation Cabinet
Subject/TRT Terms:

Bridges Cracking Cracks Fatigue Fracture Critical Members Gusset Plates Hardness Testing Hardness Tests Hydrogen Stress Cracking Nondestructive Evaluation Nondestructive Tests Quenched And Tempered Steel Splice Plates Steel Ultrasonic Testing Ultrasonic Tests
Publication/ Report Number:

KTC-10-11/KH60-07-1F
Resource Type:

Tech Report
Geographical Coverage:

Kentucky
Corporate Publisher:

University of Kentucky Transportation Center
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 or lapped with additional steel plates.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:5479b8ce144ab530616f78bfd8bbbc8fbba80a2e1c7ff87c9415c3b8b17f979c22348fb85b62938ee76cec098b5617d5f3db3e5f8a7fc5ff08c375315e2c249e
Download URL:

https://rosap.ntl.bts.gov/view/dot/21748/dot_21748_DS1.pdf
File Type:

[PDF - 2.92 MB ]

File Language:

English

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