RESPONSE OF RIGID PAVEMENTS DUE TO VEHICLE-ROAD INTERACTION

The dynamic response of a pavement structure, subject to a moving vehicle load, is investigated on a unified analytic framework. The time-dependent deflection and its derived dynamic quantities for a slab structure are obtained by linking together the characteristics of a road profile, a moving vehicle, and a slab on a viscoelastic foundation. Examples are presented to illustrate the analytic results derived from the established framework. The model may be applied to understand quantitatively the dynamic deflection and dynamic strains within a rigid pavement structure. It is found that the surface roughness effect on the dynamic response of a slab structure plays an important role for the serviceable life span of a pavement structure and may be taken into account in pavement design. The model may be calibrated to estimate the k-value for the evaluation of the subgrade support to a pavement as it ages.

Language

  • English

Media Info

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Filing Info

  • Accession Number: 00794112
  • Record Type: Publication
  • Contract Numbers: V-406
  • Files: TRIS, ATRI
  • Created Date: Jun 27 2000 12:00AM