Architecture Engineering and Science

Through field testing and MATLAB programming, the frequency range law of road surface vibration caused by the rendezvous of double-lane car can be achieved. The results show that the spectrum curve is dense within the range of 40Hz, and the main frequency of pavement vibration is located at the low frequency of about 20Hz, and is not affected by the size of the rendezvous load of cars applied to the pavement. With the increase of vehicle speed, the peak acceleration value in the frequency domain of road vibration also increases gradually. When the car intersects at a speed of 20km/h, 30km/h and 40km/h, the corresponding frequency of the peak acceleration in the road vibration frequency domain is about 84.7Hz, and the frequency decreases to 83.32Hz when the car intersection speed is increased to 50km/h.