Authors: M. De Beer
Addresses: Project Manager, Road Engineering, Division of Roads and Transport Technology (Transportek), Council for Scientific and Industrial Research (CSIR), PO Box 395, Pretoria, South Africa
Abstract: In order to design more economical pavements, it is necessary to use the most accurate input parameters possible. Tyre/pavement interface stresses are one of the important inputs in any pavement design system and therefore requires appropriate definition. This paper describes a prototype Vehicle-Road Surface Pressure Transducer Array (VRSPTA) system developed for the measurement of the tyre/pavement interface stresses of a moving wheel load. It illustrates that the tyre/pavement stresses caused by a moving wheel can be adequately measured in vertical, transverse and longitudinal directions. As this was an experimental system which contains some inaccuracies, certain improvements to the current system are suggested.
Keywords: pressure transducer array; interface; load cell; road stress; moving wheel loads; tyre-pavement interaction; tyre-road interaction; road design; tyre-pavement interface stresses; pavement design; vehicle-road surface pressure.
International Journal of Heavy Vehicle Systems, 1996 Vol.3 No.1/2/3/4, pp.97 - 115
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