Cable-to-post attachments for use in non-proprietary high-tension cable median barrier - phase II.

Details

• Creators:
  Rosenbaugh, Scott K. ; Bielenberg, Robert W. ; Lingenfelter, Jessica L. ; Faller, Ronald K. ; Reid, John D. ; Lechtenberg, Karla A.
• Corporate Creators:
  Midwest Roadside Safety Facility ; Nebraska Transportation Center ; University of Nebraska--Lincoln
• Corporate Contributors:
  Midwest States Pooled Fund Program ; Nebraska. Dept. of Roads ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Brackets
  • Cables
  • Evaluation
  • Highway safety
  • Crash tests
  • Median barriers
  • Posts
  • Recommendations Crash test
  • roadside appurtenances
  • compliance test
  More +
• Publication/ Report Number:
  TRP-03-313-15
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Nebraska
• Edition:
  Final report
• Corporate Publisher:
  Nebraska. Dept. of Roads
• Abstract:
  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 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.
  More +
• Format:
  PDF
• Funding:
  TPF-5(193) Supplement #44;TFP-5(193) Supplement 64
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/30959/dot_30959_DS1.pdf
• File Type:
  [PDF - 13.88 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:8e5923baa22fd6f97ecd0437a05911958c11c03b418a7c084c86931bbb7ae6e73d438154675de757127f87b3a4c9c02f717e200456eddc660b7de051cd351e12