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力学与实践 2009
STEADY DYNAMIC RESPONSE AND CALCULATION ON ASPHALT PAVEMENT SUBJECTED TO MOVING LOAD
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Abstract:
In our study on the steady response of asphalt pavement subjected to moving load, the asphalt pavement is considered as an infinite long elastic beam on Kelvin viscous-elastic foundation. The mathematical model of steady response of the beam is established. The relationship between the steady response and the transient response is obtained, an approximate analytic solution of steady response is obtained from the transient response analysis solution. Based on the parameters of road, an example is calculated. The calculation results show that as long as the zone of response is enough far from the initial point, the transient response of the asphalt pavement subjected to some vehicle load is a steady response. Therefore, a simple method is provided for obtaining the asphalt pavement steady response.