Safety performance evaluation of weak-post, w-beam guardrail attached to culvert.

Details

• Creators:
  Schneider, Allison J. ; Rosenbaugh, Scott ; Faller, Ronald K. ; Sicking, Dean L. ; Lechtenberg, Karla A. ; Reid, John D.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  Nebraska. Dept. of Roads ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Guardrails
  • Beams
  • Dynamic tests
  • Impact tests
  • Bending
  • Concrete culverts
  • Highway safety
  • Posts
• Publication/ Report Number:
  TRP-03-277-14
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Midwest States Regional Pooled Fund Program
• Abstract:
  A new W-beam guardrail system for use on low-fill culverts was developed and evaluated. The system was adapted from ; the MGS bridge railing for attachment to the outside face of culvert headwalls. Four attachment concepts were developed ; and evaluated through dynamic component testing. Both lateral and longitudinal impacts were conducted on the design ; concepts while mounted to a simulated concrete culvert headwall. The resulting damage from each test was confined to post ; bending only. Although all four designs prevented damage to the socket assembly and culvert headwall, the top-mounted, ; single-anchor design and the side-mounted design were recommended for use based on ease of fabrication and installation. ; The new weak-post, W-beam guardrail system for attachment to low-fill culverts was designed with multiple advantages ; over current culvert treatments. The guardrail system is mounted to the outside face of the headwall, thereby minimizing ; intrusion over the culvert and maximizing the traversable roadway width. The barrier has an unrestricted system length and ; does not require a transition when attached to standard MGS. Additionally, the attachment configurations were designed ; utilizing epoxy anchors, enabling the system to be installed on new or existing culverts. Finally, implementation guidance ; was provided for new system installations.
  More +
• Format:
  PDF
• Funding:
  TPF-5(193) Supplement #32
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27243/dot_27243_DS1.pdf
• File Type:
  [PDF - 23.25 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:be619bef55b588e1db721985426b5e3f68a1cff169ba808a9a29778a252600eccd1a86837aa9e201e96b225d042e16bc3e6f5412f419991ddb15ca9e442da6de