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Dynamic Model for Analysis of Concrete Pavements

by Karim Chatti, (A.M.ASCE), Michigan State Univ, E Lansing, United States,
John Lysmer, (M.ASCE), Michigan State Univ, E Lansing, United States,
Carl L. Monismith, (F.ASCE), Michigan State Univ, E Lansing, United States,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

A new dynamic finite-element computer program, DYNA-SLAB, for the analysis of jointed concrete pavements subjected to moving transient loads is presented. The structural model for the slab system is one used in the static computer program ILLI-SLAB. The foundation support is represented by either a damped Winkler model with uniformity distributed frequency-dependent springs and dashpots, or a system of semi-finite horizontal layers resting on a rigid base or a semi-infinite halfspace. The analytical results indicate that dynamic analysis is generally not needed for the design of 'rigid' pavements.

Subject Headings: Concrete pavements | Dynamic loads | Finite element method | Pavement design | Dynamic models | Dynamic analysis | Computer models

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