Galvanizing Effect on the Fatigue Performance of Sign and Signal Socket Connection Details
Project Information
Project ID:
FHWA-PROJ-07-0014
Project Abstract:
In 2007, a failed Virginia cantilevered sign pole was forensically investigated at Turner-Fairbank Highway Research Center. The investigation yielded inconclusive results, but evidence of zinc on the fracture surface raised a suspicion that a crack may have been preexisting from fabrication. In discussions with industry experts, there appeared to be a growing problem in the United States with hot-cracking or liquid metal embrittlement. This project was a first step to addressing the concern that began to define the reduction in fatigue strength due to galvanizing of socket connection details. The project fatigue-tested 24 socket connection details from two different fabricators. Both bare and galvanized specimens were tested from each fabrication source.
Goals:
To quantify the reduction in fatigue strength of welded tube-to-plate socket connections from galvanization.
Research HUB ID:
7610
Project Status:
Completed
Project Funding Amount (Contract Award Amount):
$150,000.00
Start Date:
End Date:
Public Access Plan:
No
Laboratory:
FHWA Program Area:
- Infrastructure
Fiscal Year / AMRP Program / AMRP Activity:
- FY 2002-2022 / Infrastructure / Structures
AMRP = Annual Modal Research Plan
Contact Information
Team:
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code:
HRDI-40
Management Organizations
Sponsor Organization
Organization Role:
Sponsor Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Lead
Contact:
Managing Organization
Organization Role:
Project Managing Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Contact
Contact:
Performing Organization
Organization Role:
Performing Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Contact
Contact:
Deliverables
Links to Project Reports: