A. S. Konorev ESTIMATION OF A DYNAMIC IMPACT OF TRANSPORT FACILITIES ON THE ROAD STRUCTURE FOR CALCULATING VALUES OF REDUCTION FACTORS

Statement of the problem. The purpose of this study is to obtain data on the level of dynamic im-pact of multi-axle vehicles on the road structure and to establish the dependence of its value on the level of evenness of highway surfacing, a fully loaded mass of vehicles and its rate of speed.Results. Multi-axle vehicle stock and their speed modes were analyzed. Computational models of various types of freight vehicles were developed in the program complex “Multiple-purpose gear”. A numerical experiment to evaluate a dynamic impact of a traffic flow of multi-axis freight vehi-cles on the road structure was carried out.Conclusions. The values of the dynamic amplification factor of 95 % and factors of reduction for the most common types of freight vehicles in the Russian Federation were defined. The dependences of their values on evenness of a road surfacing, speed rate and a fully loaded mass of a vehicle were established.