Load Response of Transportation Support Systems

by Lutfi Raad, (A.M.ASCE), Asst. Prof.; Dept. of Civ. Engrg., Univ. of Illinois at Urbana-Champaign, Urbana, Ill.,
Jose L. Figueroa, Asst. Prof.; Dept. of Civ. Engrg., Syracuse Univ., Syracuse, N.Y.; formerly, Grad Research Asst., Dept. of Civ. Engrg., Univ. of Illinois at Urbana-Champaign, Urbana, Ill.,


Serial Information: Transportation Engineering Journal of ASCE, 1980, Vol. 106, Issue 1, Pg. 111-128


Document Type: Journal Paper

Abstract:

A method of analysis incorporating the finite element method and a failure model for granular and subgrade soils based on the Mohr-Coulomb theory, together with nonlinear material properties has been developed for the purpose of determining stresses and resilient deformations in transportation support systems. Analytical predictions of resilient deformations for an existing pavement agree reasonably well with measured values under impulse loading. Analyses using the proposed method indicate that although strength of granular base and subgrade may not affect their resilient deformations, it could have a significant influence on their permanent deformation behavior under repearted loads.



Subject Headings: Material properties | Load factors | Deformation (mechanics) | Finite element method | Granular soils | Material failures | Failure analysis | Soil analysis | Stress analysis

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