Universal breakaway steel post for other applications.

Details

• Creators:
  Price, Craig W. ; Schmidt, Tyler L. ; Bielenberg, Robert W. ; Lechtenberg, Karla A. ; Faller, Ronald K. ; Reid, John D.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  Nebraska. Dept. of Roads ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Posts
  • Steel
  • Guardrails
  • Impact tests
  • Dynamic tests
  • Highway safety
  • Wood
  • Breakaway supports
  • Median barriers
  • Thrie beams
• Publication/ Report Number:
  TRP-03-288-14
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Midwest States Regional Pooled Fund Program
• Abstract:
  The Universal Breakaway Steel Post (UBSP) was developed and evaluated to replace the existing Controlled Release ; Terminal (CRT) wood posts which were used in the original bullnose guardrail system. Previously, three full-scale crash ; tests were performed on the thrie beam bullnose barrier with UBSPs, and the UBSP was determined to be a suitable ; alternative for the CRT posts. However, the UBSP was modified prior to the completion of the full-scale tests, and dynamic ; component testing was not conducted to compare the post behaviors. Therefore, a series of nine component tests were ; conducted in soil to compare the weak- and strong-axis properties between the UBSPs and CRT posts. As part of the ; component testing, one of the weak-axis tests involving the UBSP was conducted with a reused lower section of the post; ; since, the original development of the UBSP recommended reuse as long as the lower section was undamaged and displaced ; less than ½ in. (13 mm). From the testing series, it was determined that the performance of the UBSP indicated a strong ; potential for these posts to be utilized in other applications. However, UBSP should first be evaluated through engineering ; analysis and full-scale crash testing before implementation.
  More +
• Format:
  PDF
• Funding:
  TPF-5 (193), Supplement 55
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27244/dot_27244_DS1.pdf
• File Type:
  [PDF - 10.55 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:384065b7e5b143915756975066ee0dc85af73ee3bf9f6aa86536a0e69193cdc4c6a24e3baf7d66bcffe948bd977465dc86acd100e027c300c0a34e7fa9018306