A SYSTEMS ANALYSIS OF RIGID PAVEMENT DESIGN

DESIGN OF PORTLAND CEMENT CONCRETE PAVEMENTS IS A COMPLEX PROCEDURE INVOLVING THE EVALUATION AND ANALYSIS OF NUMEROUS VARIABLES. A WIDE VARIETY OF VARIABLES WITHIN THE BROAD CATEGORIES OF LOADS, ENVIRONMENTS, MATERIAL PROPERTIES, MAINTENANCE, PROGRESSIVE FAILURE, AND ECONOMICS MUST BE CONSIDERED IN AN IDEAL DESIGN PROCEDURE. CONCRETE PAVEMENT AND OVERLAY TYPES, REINFORCEMENT SELECTION, JOINT DETAILING, AND SELECTION OF SUBBASE MATERIALS ARE OTHER FACTORS INCREASING THE COMPLEXITY OF DESIGN. THE WIDE VARIETY OF STRUCTURAL AND ECONOMIC FACTORS DEMANDS THAT A PROCEDURE BE EVOLVED TO ANALYZE VARIOUS PARTS OF A DESIGN IN A COORDINATED EFFORT CALLED SYSTEMS ANALYSIS. A CONCEPTUAL RIGID PAVEMENT SYSTEM IS PRESENTED WHICH FORMALIZED THE MYRIAD OF INTERTWINED VARIABLES INTO A SERIES OF MATHEMATICAL MODELS. A METHOD IS DEVELOPED IN THE FORM OF A COMPUTER PROGRAM TO SOLVE VARIOUS MODELS, SOME DEVELOPED AS PART OF THIS WORK AND OTHERS ADOPTED FROM THE STATE-OF-THE-ART, IN A MEANINGFUL WAY. THE PROGRAM UTILIZES ABOUT 115 DIFFERENT INPUT VARIABLES AND ANALYZES NUMEROUS POSSIBLE SOLUTIONS GENERATED WITHIN THE BOUNDARIES DEFINED BY CONSTRAINTS. OUTPUT IS A SET OF PAVEMENT DESIGN STRATEGIES BASED ON INCREASING VALUE OF PRESENT WORTH OF OVERALL COSTS. DETAILS WITH RESPECT TO SELECTION OF THICKNESSES, MATERIALS, REINFORCEMENTS, AND JOINTS AS WELL AS OVERLAY PATTERNS AND PREDICTED LIVES ARE PRESENTED FOR EACH DESIGN. A SMALL SENSITIVITY ANALYSIS OF THE DEVELOPED SYSTEM IS ALSO PRESENTED IN ORDER TO CREATE CONFIDENCE IN THE REASONABLENESS OF THE SYSTEM AND ITS OUTPUT. /AUTHOR/

  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Kher, R K
    • Hudson, W R
    • McCullough, B F
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00205381
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: 123-5
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Aug 8 1971 12:00AM