A structural design procedure based on elastic theory is presented. The main aspects of the procedure are discussed, i.e. failure conditions, loading and climatical conditions, determination of elastic parameters and of allowable stresses and strains and finally calculation of the critical stresses and strains. The main emphasis of the paper is on the determination of the elastic moduli of the different materials in a pavement structure, because a correct determination of the moduli is a prerequisite for the application of the theory of elasticity. A non-destructive method of determining the moduli of two- and three-layer systems is presented. The method is based on the use of dynamic plate loading tests (e.g. falling weight deflectometer tests) and the calculations may be carried out with the use of some diagrams and a programmable pocket calculator. For more complex structures, i.e. structures containing four or more layers, use of at least a programmable desktop calculator is required. The validity of this model for determining the stresses and strains under actual traffic loadings has been verified through full scale experiments and the allowable stresses and strains is based on laboratory tests and the results of the WASHO and AASHO Road Tests, modified in accordance with the experience gained from Danish road design during the last decade.

Media Info

  • Features: Figures; References;
  • Pagination: p. 722-735

Subject/Index Terms

Filing Info

  • Accession Number: 00170246
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Mar 29 1978 12:00AM