Structural Engineering Research On-Call Services Task 2 - Aluminum Truss Overhead Sign Support Flange Damage Assessment
A variety of structural supports exist to mount signs along highways. One type of support is a truss that spans the width of the highway that allows for the placement of overhead signs. These trusses are subject primarily to wind and gravity loads. The connections between the chords and the diagonals are typical fillet welded. Fillet welds are a fatigue prone detail and the welding potentially can leave a heat affected zone which affects the strength of the joints and the members. A truss with severe cracking near Obetz, Ohio was identified by the Ohio Department of Transportation and removed from service. Research team members inspected the trusses in the field on March 14, 2018 after they were removed from service. The cracking was mapped and elements of the truss including cracked and undamaged joints were removed from the truss and transported to the University of Toledo.
- Record URL:
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Supplemental Notes:
- Cover title: Structures Research Services 2015-2017 (Task 2 Final Report – Aluminum Truss Overhead Sign Support Flange Damage Assessment). Cover date: January 2019.
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Corporate Authors:
Ohio University, Athens
Department of Civil Engineering
Athens, OH United States 45701Ohio Department of Transportation
Office of Statewide Planning and Research
1980 West Broad Street
Columbus, OH United States 43223Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Steinberg, Eric P
- Miller, Richard A
- Nims, Douglas K
- White, Kevin
- Walsh, Kenneth
- Khoury, Issam
- Publication Date: 2019-9
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Photos;
- Pagination: 9p
Subject/Index Terms
- TRT Terms: Cracking; Flanges; Sign supports; Structural analysis
- Geographic Terms: Ohio
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;
Filing Info
- Accession Number: 01848912
- Record Type: Publication
- Report/Paper Numbers: FHWA/OH-2019-21
- Contract Numbers: SJN 135250
- Files: NTL, TRIS, ATRI, USDOT, STATEDOT
- Created Date: Jun 21 2022 10:28AM