PAVEMENT SLABS RESTING ON ELASTIC FOUNDATION

THE DEVELOPMENT OF A RATIONAL METHOD OF ANALYSIS OF ANY SYSTEM MUST INCLUDE THE SELECTION AND ANALYSIS OF A MODEL FOR REALISTIC INPUT PARAMETERS. BASED ON THIS IDEA, A SIMPLE METHOD HAS BEEN DEVELOPED FOR SOLUTION OF OFTEN ENCOUNTERED PROBLEMS OF ENGINEERING PRACTICE INVOLVING SLABS RESTING ON SUBGRADE. THE SLAB IS REPRESENTED BY A PHYSICAL MODEL, WHICH IS HELPFUL IN VISUALIZING THE PROBLEM AND FORMING A SOLUTION. REGARDING SUBGRADE, MOST OF THE AVAILABLE ANALYSES ASSUME IT TO BE A WINKLER MODEL, A PHYSICAL MODEL OF A HEAVY LIQUID, OR A BED OF SPRINGS. IN THIS PAPER THE SOIL IS TREATED AS AN ELASTIC SOLID. WITH THESE TWO MODELS FOR SLAB AND SUBGRADE, A COMPUTER METHOD BASED ON MATRIX ANALYSIS HAS BEEN DEVELOPED. FROM THE SOLUTION OF REACTIVE SUBGRADE PRESSURES, THE DEFLECTIONS ARE THEN SUBSEQUENTLY USED TO COMPUTE STRESSES AND BENDING MOMENTS. TWO EXEMPLARY PROBLEMS, ONE WITH A CORNER LOAD AND ONE WITH A CENTER LOAD, HAVE BEEN INCLUDED. COMPARISON OF THE LATTER WITH THE WINKLER MODEL IS ILLUSTRATED.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1973/466/466-012.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309022509
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Theory of 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:
  • Saxena, Surendra K
• Conference:
  • 52nd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1973-1-22 to 1973-1-26
• Publication Date: 1973

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 163-178
• Monograph Title: Pavement systems analyses
• Serial:
  • Highway Research Record
  • Issue Number: 466
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Bending moments; Deflection; Elastic bodies; Information processing; Mathematical models; Pavements; Slabs; Stresses; Subgrade (Pavements)
• Uncontrolled Terms: Models
• Old TRIS Terms: Elastic solids; Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207628
• Record Type: Publication
• ISBN: 0309022509
• Files: TRIS, TRB
• Created Date: May 15 1974 12:00AM