Improved models of cable-to-post attachments for high-tension cable barriers.

Details

• Creators:
  Stolle, Cody S. ; Reid, John D. ; Bielenberg, Robert W.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Simulation
  • Median barriers
  • Cables
  • Roadside structures
  • Traffic crashes
  • Resistance tests
  • Impact tests
  • Traffic accidents--Research
  • Roads--Guard fences--Testing
  • Median strips
  More +
• Publication/ Report Number:
  TRP-03-267-1212
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report.
• Corporate Publisher:
  Nebraska Transportation Center
• Abstract:
  Computer simulation models were developed to analyze and evaluate a new cable-to-post attachment for high-tension cable ; barriers. The models replicated the performance of a keyway bolt currently used in the design of a high-tension cable ; median barrier being developed at the Midwest Roadside Safety Facility. Component tests of the keyway bolts were ; simulated and compared to the component test results. Accurate friction, fracture strain, and stress-strain material properties ; were determined for a solid element model of the keyway bolt by applying actual load curve measured from the test to a ; simulated pull cable. By simulating the material properties of the solid element keyway bolt in bending, torsion, and tension ; of a rod, load curves were developed for a simplified beam element model of the keyway bolt as well. ; When material properties were finalized, the solid and beam element models of the keyway bolt were inserted in bogie test ; models and simulated again. By analyzing the bogie testing results, it was determined that due to the very small size of the ; keyway bolt and potential contact difficulties, solid element models of the keyway bolt may be impractical for full-scale ; simulation purposes. However, the beam element models were determined to be advantageous and had a very small ; computational cost in comparison.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25448/dot_25448_DS1.pdf
• File Type:
  [PDF - 5.90 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:dd97126066f469a58bccdb3d9eead4ac2817a6ac1eda4199ba68a3eebeb5d97a934baea5d80d97b400e1df065b9a948bdd3768c05a4014926a052c487319b135