EFFECTS OF MULTIPLE WHEEL SYSTEMS AND HORIZONTAL SURFACE LOADS ON PAVEMENT STRUCTURES

The theory of elasticity has been applied to layered systems representing flexible pavements. The distributions and the maximum values of the tensile strain in the asphalt layer and the compressive strain in the subgrade under multiple-wheel systems have been calculated. The concerted action of the wheels depends, not only on the wheel spacing, but also to a significant degree on the structure which renders weighting traffic for design purposes difficult. A thickness design method based on these strains as criteria is equivalent to one that is based on shear or deformation energy criteria, provided that the permissible values are obtained at the same stress condition as prevails in the pavement. Under normal and tangential surface forces the influence of asphalt layer thickness on the normal and shear stresses at the asphalt/base interface has been investigated: the stresses decrease with increasing thickness. At high asphalt temperatures the shear stresses might be critical for the adhesion between, particularly, a thin asphalt layer and a stiff base. /AUTHOR/

  • Supplemental Notes:
    • Presented at the Third International Conference on the Structural Design of Asphalt Pavements, Grosvenor House, Park Lane, London, England, Sept. 11-15, 1972.
  • Corporate Authors:

    International Conf Struct Design Asph Pvmts (3rd)

    University of Michigan, Department of Civil Engineering
    Ann Arbor, MI  United States  48104

    International Conf Struct Design Asph Pvmts (3rd)

    University of Michigan, Department of Divil Engineering
    Ann Arbor, MI  United States  48104

    Interrational Conf Struct Design Asph Pvmts (3rd)

    University of Michigan, Department of Civil Engineering
    Ann Arbor, MI  United States  48104
  • Authors:
    • Valkering, C P
  • Conference:
  • Publication Date: 1972-9

Media Info

  • Features: Figures; References;
  • Pagination: p. 542-549
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00261938
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 22 1974 12:00AM