DYNAMIC ANALYSIS OF CONCRETE PAVEMENTS SUBJECTED TO MOVING LOADS

Using the three-dimensional (3D) finite-element method in conjunction with Newmark integration scheme, the authors analyze the dynamic response of concrete pavements subjected to moving loads. The 3D finite-element algorithm considers the dynamic vehicle-pavement-foundation interaction effects. The vehicle loads are represented as lumped masses each supported by a spring-dashpot suspension system with a specified horizontal velocity and acceleration. It is assumed that concrete pavements respond elastically and are represented by a series of brick elements. The present formulation uses a linear viscoelastic foundation model (Kelvin model) consisting of a system of discrete linear springs and dashpots. The interaction between concrete pavements and soil foundations are taken into account. The results are compared to available theoretical results to confirm the accuracy of the present algorithm. An investigation is conducted to assess the effects of various parameters on the dynamic response of concrete pavements subjected to moving loads.

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  • English

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  • Accession Number: 00726128
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Sep 28 1996 12:00AM