Dynamic evaluation of a pinned anchoring system for New York state’s temporary concrete barriers : final report, September 8, 2009.

Details

• Creators:
  Howard, Christopher N. ; Stolle, Cale J. ; Lechtenberg, Karla A. ; Faller, Ronald K. ; Reid, John D. ; Sicking, Dean L.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  New York (N.Y.). Dept. of Transportation
• Subject/TRT Terms:
  • Guardrails
  • Barriers (Roads)
  • Temporary barriers Roads--Guard fences--Testing
  • Roads--Safety measures
• Publication/ Report Number:
  TRP-03-216-09
• Resource Type:
  Tech Report
• Geographical Coverage:
  New York
• Edition:
  Final report; 2008-2009.
• Corporate Publisher:
  Midwest Roadside Safety Facility
• Abstract:
  Temporary concrete barrier (TCB) systems are utilized in many circumstances, including for placement adjacent to vertical ; dropoffs. Free-standing TCB systems are known to have relatively large deflections when impacted, which may be undesirable when ; dealing with limited space behind the barrier (as seen on a bridge deck) or limited lane width in front of the barrier system. In order to ; allow TCB systems to be used in space-restricted locations, a variety of TCB stiffening options have been tested, including beam ; stiffening and pinning the barriers to the pavement. These pavement-pinning procedures have been considered time-consuming and may ; pose undue risk to work-zone personnel who are anchoring the barrier on the traffic-side face. Thus, a means of reducing TCB deflections ; while reducing risk to workers was deemed necessary. ; The primary research objective was to evaluate the potential for pinning alternate barrier sections on the back-side toe of the ; New York State’s New Jersey-shape TCBs and evaluate the barrier system according to the Test Level 3 (TL-3) criteria set forth in ; MASH. The research study included one 2270P full-scale vehicle crash test with a Dodge Quad Cab pickup truck. Four 15½-in. ; (394-mm) long, vertical steel pins were placed through holes on the back-side toe of alternating barrier sections and inserted into drilled ; holes within the rigid concrete surface. Following the successful redirection of the pickup truck, the safety performance of the pinned ; anchoring system was determined to be acceptable according to the TL-3 evaluation criteria specified in MASH using the 2270P vehicle. ; However, it should be noted that significant barrier deflections were observed during the crash test and may be greater than those desired ; for work areas with restricted space.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17321/dot_17321_DS1.pdf
• File Type:
  [PDF - 8.52 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:520f9ded15c99052386b6b19c417e40deb71c78ed631fa20a6b3bafc82b64c6e4ce681b526011dcd5bda2ddaf4c3d8162b79a03908c7a17d05e5fd186245eba5