cylindrical thin-walled shell, stress-strain state, vibrations, modulus of elasticity.

The article presents a theoretical calculation of the cylindrical thin-walled shell of concrete of different classes with different modules of elasticity. Constructions in the form of a cylindrical shell are widely used in the construction of hydraulic facilities, nuclear power plants, stadiums and other large-span structures. During the operation of such facilities, they are affected by wind and snow loads, including the work of equipment from the action of which there are forced oscillations. Imposing of own oscillations of thin-walled shells and forced vibrations from external loads, which are not taken into account by the designer or incorrect works during construction, which lead to emergency situations. In addition to the theoretical calculation of a cylindrical closed thin-walled reinforced concrete shell, a practical part of it is also given where it is shown how the forced oscillation occurs in different concrete classes and how the concrete class affects the Frequency spectrum of the forced oscillations.

Sysoev Oleg Evgenyevich

e-mail: fks@mail.ru, Doctor of Engineering, associate Professor, Komsomolsk-on-Amur of State

University, Russia

Qahorov Komiljon Qahorovich

e-mail: comil07@mail.ru, graduate student, Komsomolsk-on-Amur of State University, Russia

Sysoev Evgeniy Olegovich

e-mail: fks@mail.ru, Candidate of Economic Sciences, associate Professor, Komsomolsk-on-Amur of State University, Russia