Features of the calculation of the pavement which is coating based on orthotropic steel deck
In article the possible reasons which behind the low service life of pavement are analyzed, the modern methods of pavements calculating in compliance with the actual working conditions are considered. Description of influence of the orthotropic steel deck design features on the cover work is given. The fracture properties of the coating on the roadbed and on the orthotropic steel deck are considered. The basic premises of the calculation methods which are introduced in the simulation of soil mass considered for the orthotropic plate. One of the main reasons which cause pavement defects is high deformability of structures roadway. The requirements of modern normative documents which operating in the Russian Federation and abroad and regulate the orthotropic steel deck stiffness were analyzed. Evaluation of pavement`s stress-strain state was done on the bridge over the Irtysh river where regular cracks is constantly evolving. Comparison of actual stresses with asphalt tensile strength made. The calculations is held in the finite element environment Midas Civil impact on real load (three-axle trucks with a 12 ton/axle weight). The nature of the damage development when the coating on orthotropic steel deck with strip ribs is defined.