STRUCTURAL ANALYSIS OF BITUMINOUS CONCRETE PAVEMENTS

A COMPUTER PROGRAM THAT PERMITS ANALYSIS OF ELASTIC, MULTILAYERED PAVEMENT SYSTEMS WAS USED TO DETERMINE THE PATTERNS OF STRESSES, STRAINS, AND DEFLECTIONS IN A PAVEMENT SYSTEM. THE STUDY ALSO SOUGHT TO USE THE FATIGUE CONCEPT (EQUIVALENT AXLE LOADS) TO SHOW THE RELATION BETWEEN THESE STRESSES, STRAINS, AND DEFLECTIONS ON THE ONE HAND AND CURRENT AND PROPOSED DESIGN CURVES ON THE OTHER. THICKNESS DESIGN CRITERIA CANNOT BE BASED DIRECTLY ON DEFLECTION SPECTRA, AS SURFACE DEFLECTION IS NOT A DISCRETE, LIMITING PARAMETER: STRESSES AND STRAINS IN THE SUBGRADE SOIL AND IN THE EXTREME FIBERS OF THE AC LAYER MAY CONSTITUTE OVERRIDING, FUNDAMENTAL LIMITS. ACCORDINGLY, STRAIN DIAGRAMS ARE PRESENTED FOR BOTH SUBGRADE AND ASPHALTIC CONCRETE AS A FUNCTION OF CBR, TRAFFIC CHARACTERISTICS, LOAD CYCLES, ETC.. NOMOGRAPHS ARE DERIVED FOR ANALYSIS OF COMPRESSIVE AND TENSILE STRAINS. THE RESULTS ARE EVALUATED AND COMPARED WITH EXISTING DESIGN GUIDES.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1972/407/407-003.pdf
• Supplemental Notes:
  • Sponsored by Committee on Flexible Pavement Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Deen, R C
  • Southgate, H F
  • Havens, J H
• Conference:
  • 51st Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1972-1-17 to 1972-1-21
• Publication Date: 1972

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 22-35
• Monograph Title: Pavement technology
• Serial:
  • Highway Research Record
  • Issue Number: 407
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Asphalt concrete; Axle load force; Bituminous pavements; Deflection; Fatigue (Mechanics); Pavement design; Strain (Mechanics); Stresses; Subgrade (Pavements); Thickness
• Old TRIS Terms: Strains; Thickness design
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206039
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: May 15 1973 12:00AM