Lighting, Sign and Signal Structure Problems

The objective of this research project is to determine the cause of cracking in various light poles, sign and signal structures by measuring residual and live load stresses originating from design, fabrication, welding and fit-up of telescoping, flange and other joints; investigate failures of aluminum, stainless, and steel light poles & luminaires, breakaway couplings, and the feasibility of fatigue-resistant cast iron pole bases with low impact toughness and electrical handholes.


    • English


    • Status: Completed
    • Contract Numbers:


    • Sponsor Organizations:

      Illinois Department of Transportation

      2300 S. Dirksen Parkway
      Springfield, IL  United States  62764
    • Performing Organizations:

      Illinois Department of Transportation

      Bureau of Materials and Physical Research
      126 East Ash Street
      Springfield, IL  United States  62704-4766
    • Principal Investigators:

      Hahin, Christopher

    • Start Date: 20020300
    • Expected Completion Date: 0
    • Actual Completion Date: 20090600
    • Source Data: RiP Project 12065

    Subject/Index Terms

    Filing Info

    • Accession Number: 01460550
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: IHR07-1
    • Files: RiP, STATEDOT
    • Created Date: Jan 3 2013 1:27PM