Design on highway accelerated loading testing facility

Accelerated loading testing facility gains importance for proofing evaluations of structure designs as well as the final evaluation of new pavement materials and functions. So a highway accelerated loading testing facility is developed, which has self-owned intellectual property. The facility is made up of machine frame, a mobile car and a frame for dragging cable. The facility can test and evaluate the quality of the road surface, analyze the failure mode and the failure mechanism of the road surface. Uni-directional loading through double-wheel rolling is used in the loading condition so as to improve the efficiency. The guide rails in the two ends are designed as ellipse in order to reduce the impact. Mechanical-electrical integrated technology is used in the facility, which has advantage of convenience, flexibility and practicability. CAN bus and PLC are adopted in the measuring and control system of the highway accelerated loading testing. Finally, the pressure acting on the road surface of the automobile tire is tested using the facility. The experiment shows that the system design is correct and feasible.