Evaluation of Near-Surface Stress States in Asphalt Concrete Pavement: Three-Dimensional Tire–Pavement Contact Model

A sophisticated three-dimensional (3-D) tire model was placed directly on a three-layer asphalt concrete (AC) pavement system to form a 3-D tire–pavement contact model. The model was then verified with measured contact stresses and was used to investigate near-surface stress states in the AC layer. When compared with the traditional uniform vertical loading model, the 3-D tire–pavement contact model produced stress states not only higher in magnitude but also more variable in distribution. The 3-D tire–pavement contact model produced much higher principal tensile stress and maximum shear stress near the tire edge; the increased stress was a possible explanation for instability rutting and associated top-down cracking. A critical shear plane was developed for the top 50 mm of the AC layer by using a p-q diagram, and the tire–pavement contact model produced a much higher shear yield percentage.

• Record URL:
  https://doi.org/10.3141/2227-13
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Evaluation+of+Near-Surface+Stress+States+in+Asphalt+Concrete+Pavement%3a+Three-Dimensional+Tire%e2%ac%1cPavement+Contact+Model&author=G.+Wang&author=R.+Roque&author=D.+Morian&publication_year=2011
• Availability:
  • Find a library where document is available. Order URL: http://www.trb.org/Main/Blurbs/166429.aspx
• Authors:
  • Wang, Guangming
  • Roque, Reynaldo
  • Morian, Dennis
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 119-128
• Monograph Title: Pavement Management 2011, Volume 3
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2227
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt concrete pavements; Rolling contact; Rutting; Shear stress; Tires
• Uncontrolled Terms: Contact stresses; Tensile stress; Three dimensional models; Top down cracking (Pavements)
• Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01334158
• Record Type: Publication
• ISBN: 9780309167505
• Report/Paper Numbers: 11-0332
• Files: TRIS, TRB, ATRI
• Created Date: Mar 25 2011 10:28AM