车辆对路面作用随机动载荷的试验

通过试验对不同载荷和行驶速度的车辆作用于路面的随机动载进行了研究，探讨了车辆空载、满载和超载时产生的随机动载与行驶速度的关系。试验结果表明，空载时动载荷随着行驶速度的增加增幅较大，特别是在车辆高速行驶情况下动载荷明显增大；满载和超载时动载荷随着行驶速度的增加增幅较平缓；在一定的行驶速度下，随着静载增加，动载荷也明显增大，而且超载量越大，动载荷增加越大。

Experimental Study on Random Dynamic Load of Vehicles on Pavement

By the experiments, the random dynamic loads on a pavement generated by vehicles with different loads and speeds were investigated. The relationship between the random dynamic load on pavement and vehicle speed under the vehicle loading conditions of zero load, full load and overload were analyzed. The experimental results show that the dynamic load increases significantly as increase of running speed under zero loading condition, and the increase of the dynamic load is even grater when the speed is high. In contrast, the dynamic load increases less significantly under the full load or overload. At a constant speed, the dynamic load will increase in direct proportion to vehicle's static load, and the more the vehicle overloads, the more the dynamic load increases.