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. VARIOUS METHODS OF DESIGN HAVE BEEN PRESENTED IN THE PAST, BUT NO PROCEDURE IS GENERALLY ACCEPTABLE DUE TO THE LIMITED NATURE OF THE PROBLEM AND ANALYSIS, THE WIDE VARIETY OF STRUCTURAL AND ECONOMIC FACTORS DEMANDS THAT A PROCEDURE BE EVOLVED TO ANALYZE VARIOUS PARTS IN A COORDINATED EFFORT CALLED SYSTEMS ANALYSIS. A CONCEPTUAL RIGID PAVEMENT SYSTEM IS PRESENTED WHICH FORMALIZES 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. 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/

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