THEORETICAL RELATIONSHIPS BETWEEN MODULI FOR SOIL LAYERS BENEATH CONCRETE PAVEMENTS

Several mathematical relationships are presented which relate the Westergaard method of analysis used for rigid pavements and the elastic layer method of analysis used for both rigid and flexible pavements. Twenty-three pavement sections were selected to illustrate the usage of these relationships. These sections represent the widest possible variation of rigid pavement types for which sufficient materials data was available. For the sections studied and within the context of linear analysis, these relationships demonstrate that the peak pavement stress can usually be computed by either method of analysis while the peak displacements are separated by a rather consistent seventy percent.

• Corporate Authors:

  Naval Civil Engineering Laboratory

  Point Mugu
  Port Hueneme, CA  United States  93041

  Federal Aviation Administration

  Systems R&D Service, 800 Independence Avenue, SW
  Washington, DC  United States 
• Authors:
  • Crawford, J E
  • HOPKINS, J S
  • Smith, J
• Publication Date: 1976-5

Media Info

• Pagination: 75 p.

Subject/Index Terms

• TRT Terms: Airports; Base course (Pavements); Coefficient of subgrade reaction; Computer aided design; Concrete; Concrete pavements; Loads; Mathematical analysis; Mathematical models; Pavement layers; Pavements; Rigid pavements; Tension
• Uncontrolled Terms: Tensile stress
• Old TRIS Terms: Westergaard formula
• Subject Areas: Aviation; Highways; Pavements; Terminals and Facilities;

Filing Info

• Accession Number: 00143006
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-RD-75-140 Final Rpt., FAA-RD-75-140
• Contract Numbers: DOT-FA74WAI-487
• Files: NTIS, TRIS, USDOT
• Created Date: Oct 6 1976 12:00AM