ADVANCED ANALYSIS OF RIGID PAVEMENTS

STRESSES IN RIGID PAVEMENTS WERE OBTAINED BY USING A FOUNDATION MODEL RATHER THAN THE DENSE LIQUID MODEL. THE FOUNDATION WAS TREATED AS AN ELASTIC CONTINUOUS, BUT DIFFERENT BOUNDARY CONDITIONS WERE CONSIDERED FOR THE PAVEMENT SLAB, AND AN IMPROVED COMPUTATION TECHNIQUE WAS USED. IN THIS METHOD, THE SLAB WAS TREATED AS AN ASSEMBLAGE OF PLATE ELEMENTS, WHILE THE FOUNDATION WAS TREATED AS AN IDEALIZED ELASTIC HALF SPACE FOR WHICH THE FLEXIBILITY MATRIX WAS DETERMINED USING BOUSSINESQ'S EQUATION FOR SURFACE DEFLECTION. THE STIFFNESS MATRIX OF THE FOUNDATION WAS OBTAINED BY INVERTING THE FLEXIBILITY MATRIX. IT WAS THEN COMBINED WITH THAT OF THE SLAB TO OBTAIN THE COMPLETE STIFFNESS MATRIX OF THE STRUCTURE. THE STRESSES IN THE PAVEMENT SLAB WERE THEN DETERMINED FOR DIFFERENT LOADS AND DIFFERENT TYPES OF SUBGRADES. THE RESULTS WERE COMPARED WITH THE STRESSES DETERMINED BY CONVENTIONAL METHODS. THE COMPARISON SHOWED THAT THE CONVENTIONAL METHODS GIVE LOWER STRESSES THAT ARE ON THE UNSAFE SIDE. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Authors:
  • Wang, S K
  • Sargious, M
  • Cheung, Y K
• Publication Date: 1972-2

Media Info

• Pagination: p. 37-44
• Serial:
  • Journal of Transportation Engineering
  • Volume: 98
  • Issue Number: te1
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Internal friction; Rigid pavements; Stiffness; Structural analysis; Theory; Viscoelastic materials; Viscoelasticity
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207437
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 23 1972 12:00AM