基于路面不平度的路面附加动载分析

Additional Dynamic Load Analysis Based on Pavement Roughness

为了能够分析出与实际车辆动荷载更接近的动载,基于路面不平度分析了较低等级路面B、C、D的附加动载.分析结果表明:车辆行驶速度、路面等级不同,车辆对路面产生的附加动荷载的作用点的位置也不相同;路面附加动载随着路面等级降低逐渐增大;在相同的路面条件下,附加动荷载大小并不是随着车速的增大而增大的,而是在某一车速下达到最大值.

In order to analyze the dynamic load closer to the actual vehicle dynamic load the article analyzed the additional dynamic load of the lower B、C、D classification of pavement On the basis of pavement roughness,the conclusions were as follows： the point location of the additional dynamic load generated by vehicle on the road is different with the different vehicle speed and the classification of pavement,the additional dynamic load increased with the lower classification of highway pavement,but at the same classification of pavement,the additional load was not increased with the speed increasing,it reached a maximum speed under a certain speed.