Cable-to-Post Attachments for Use in Non-Proprietary High-Tension Cable Median Barrier – Phase III

The objective of this study was to reevaluate and improve the existing cable-to-post attachment hardware that is utilized in the non-proprietary cable barrier being developed at the Midwest Roadside Safety Facility (MwRSF). The study focused on redesigning the bolted, tabbed bracket (V10) to eliminate the bolt, reduce the number of components per bracket, eliminate the need for tools during installation, and reduce the number of small parts. Three attachment concepts were selected for evaluation through dynamic testing: (1) the key plate attachment; (2) the wire lock pin attachment; and (3) the pinned back attachment. Each attachment prototype was subjected to two vertical and two lateral dynamic component tests to evaluate the release loads and fracture mechanisms of the brackets. Test results were compared to previous tests on the bolted tabbed bracket (V10). None of the three bracket attachment designs were found to satisfy all of the design criteria for an alternative bracket. The lack of fixity in the connection between the brackets and the post led to a variable position of the tabs within the keyway which frequently caused unsatisfactory release loads. Therefore, none of the three alternative attachment brackets were recommended for use within the prototype non-proprietary cable barrier.

  • Record URL:
  • Supplemental Notes:
    • Cover title: Cable-to-Post Attachments for a Non-Proprietary High-Tension Cable Barrier – Phase III
  • Corporate Authors:

    Midwest Roadside Safety Facility

    2200 Vine Street
    130 Whittier Building
    Lincoln, NE  United States  68588-0853

    Nebraska Department of Roads

    Midwest States Regional Pooled Fund Program,
    1500 Nebraska Highway 2
    Lincoln, NE  United States  68502

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Rosenbaugh, Scott K
    • Bielenberg, Robert W
    • Lingenfelter, Jessica L
    • Faller, Ronald K
    • Reid, John D
    • Lechtenberg, Karla A
  • Publication Date: 2016-3-24

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 122p

Subject/Index Terms

Filing Info

  • Accession Number: 01603595
  • Record Type: Publication
  • Report/Paper Numbers: TRP-03-323-16
  • Contract Numbers: TPF-5(193) Supplement 44; TPF-5(193) Supplement 64
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: Jun 14 2016 12:11PM