AIR CRAFT-PAVEMENT INTERACTION STUDIES. PHASE I: A FINITE- ELEMENT MODEL OF A JOINTED CONCRETE PAVEMENT ON A NON- LINEAR VISCOUS SUBRRADE

THIS REPORT DESCRIBES A FINITE-ELEMENT PROCEDURE FOR ANALYZING MULTI-LAYERED CONCRETE AIRFIELD PAVEMENTS. AN "EQUIVALENT PLATE" THEORY IS USED TO ACCOUNT FOR THE INCREASED STIFFNESS PROVIDED BY A STABILIZED BASE OR A STRUCTURAL OVERLAY. THE STIFFNESS IS ALSO ADJUSTED TO PROVIDE FOR THE EFFECTS OF VARIOUS BOND LEVELS DEVELOPED BETWEEN THE PAVEMENT LAYERS. THE FINITE-ELEMENT PAVEMENT MODEL HAS BEEN DEVELOPED TO AID THE STUDY OF AIRFIELD- PAVEMENT INTERACTION AND ESPECIALLY TO HELP ANALYZE SURFACE DEFORMATIONS RESULTING FROM MULTI-WHEEL AIRCRAFT LOADS. PAVEMENT JOINTS ARE GIVEN FINITE DIMENSIONS AND TREATED AS SEPARATE ENTITIES TO PERMIT MORE ACCURATE DETERMINATION OF STRESS AT AN EDGE IN A JOINTED PAVEMENT. SUBSOIL MATERIAL CAN BE MODELED AS A LINEAR ELASTIC, NON-LINEAR, OR NON- LINEAR VISCOUS MATERIAL. THE MODEL'S PERFORMANCE IS COMPARED TO THAT OF THREE EXISTING SOLUTIONS FOR STATIC PAVEMENT PROBLEMS. RESULTS INDICATE THAT THE FINITE-ELEMENT MODEL ADEQUATELY PREDICTS SURFACE DEFLECTIONS OF AN AIRFIELD PAVEMENT. STRESSES AT THE UPPER AND LOWER SURFACES OF THE PAVEMENT SHOW REASONABLE AGREEMENT WITH EXISTING THEORY. /AUTHOR/

  • Supplemental Notes:
    • Rept No S-19
  • Corporate Authors:

    Construction Engineering Research Laboratory

    Army Corps of Engineers, P.O. Box 4005
    Champaign, IL  USA  61820
  • Authors:
    • Eberhardt, A C
  • Publication Date: 1973-6

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 23 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00206103
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 22 1974 12:00AM