33407 2304-6295 1 86 2020 1-29

RAR RUS 7-19 7102546144 0000-0001-7651-1534 Automotive-road college Kirillov Andrei Mikhailovich kirill806@gmail.com

Sochi, Russian Federation

Analysis of formulas for calculating the road dynamic factor Subject: dynamic interaction of the vehicle with the road pavement. Research objectives: analysis of various models for calculating the dynamic factor of pavement. Materials and methods: a) the research material is the formulas published in the open press and regulatory documents for calculating the dynamic factor of the road pavement; b) the main research method is a comparative critical analysis of various models of road dynamic factor. Results: various formulas for calculating the dynamic factor are analyzed, their advantages and disadvantages are revealed. Conclusions: 1) The need to improve existing formulas for calculating the dynamic factor in order to more fully take into account all the factors influencing it (geometric and material parameters of the road construction, constructive parameters of the vehicle, condition of the road pavement, geometry of roughness, etc. 2) Some formulas for calculating the dynamic factor give a average value for a some uniform road section. Therefore, the data obtained using these formulas make it possible to carry out a comparative analysis of different sections of roads according to the level of dynamic impact. Using other formulas that take into account the geometry of unevenness, one can determine local dynamic overloads, and, accordingly, predict the development and accumulation of deformations of the road pavement. 10.18720/CUBS.86.1 69 durability sprung and unsprung masses dynamic influence evenness of road pavement dynamic factor https://unistroy.spbstu.ru/article/2020.86.1/ 86_1.pdf

RAR RUS 20-29 Titova Iriva Scientific and Engineering Center of digitalization and design in construction, Saint-Petersburg, Russia Volkodav Vladimir The history and development of the classification system for the construction industry Subject: dynamic interaction of the vehicle with the road pavement. Research objectives: analysis of various models for calculating the dynamic factor of pavement. Materials and methods: a) the research material is the formulas published in the open press and regulatory documents for calculating the dynamic factor of the road pavement; b) the main research method is a comparative critical analysis of various models of road dynamic factor. Results: various formulas for calculating the dynamic factor are analyzed, their advantages and disadvantages are revealed. Conclusions: 1) The need to improve existing formulas for calculating the dynamic factor in order to more fully take into account all the factors influencing it (geometric and material parameters of the road construction, constructive parameters of the vehicle, condition of the road pavement, geometry of roughness, etc. 2) Some formulas for calculating the dynamic factor give a average value for a some uniform road section. Therefore, the data obtained using these formulas make it possible to carry out a comparative analysis of different sections of roads according to the level of dynamic impact. Using other formulas that take into account the geometry of unevenness, one can determine local dynamic overloads, and, accordingly, predict the development and accumulation of deformations of the road pavement. 10.18720/CUBS.86.2 69 BIM SfB digital construction classification system for the construction industry information modeling Uniclass MasterFormat Uniformat CI/SfB https://unistroy.spbstu.ru/article/2020.86.2/ 86_2.pdf