Dynamic Analysis of Multi-Layered Pavement Systems Under Moving Loads

A new method of analysis for the dynamic response of layered pavements to moving dynamic loads has been developed. The method accounts for wave propagation as well as inertia and damping effects. The loads are modeled as a series of moving haversine pulses. The proposed method can handle any load configuration, thus making it possible to model multiple wheel configurations of trucks, buses and airplanes. Vehicle speed was found to have a significant effect on pavement response, while loading frequency proved to have only a minor effect. Excellent agreement with field results from full-scale pavement tests was achieved.