Rigid Pavement Acceleration-Velocity Dynamic Behavior Induced by Traffic Load

Identification of highway performance along with service life is very important.The complexity of highway pavement process design requires a better understanding related to physical parameter of the velocity-acceleration process of material caused by the traffic.Vibration monitoring was conducted by using an accelerometer sensor-based equipment.An accelerometer application as a vibration monitoring sensor is non-destructive testing of structural health monitoring system (SHMS).The purpose of this paper is to study the actual acceleration-velocity pavement dynamic behavior triggered by traffic load on the rigid pavement type.The testing was conducted by using a set of acceleration sensors installed on the pavement.All types of vehicle passes were recorded to find the understanding of the acceleration-velocity pavement dynamic behavior in real time.In this paper, the properties of acceleration-velocity were established and the important parameters including vehicle speed of vehicle and axle load, were defined.The results have shown that the acceleration-velocity pavement dynamic behavior was most affected by vehicle speed and the type of vehicle which related to axle load.Motorcycle with velocity 33.80 km/h has frequency 17.57Hz and heavy vehicle has frequency 205.07 Hz with velocity 16.14 km/h.The results depicted that parameter dynamics of pavement have a positive correlation to the speed and axle loads.The acceleration magnitude for motorcycle, car and heavy vehicle are 30 cm/s 2 , 500 cm/s 2 , and 700 cm/s 2 respectively.The factors of weight and speed of vehicles contribute to pavement vibration behavior.