longitudinal-transverse bending, bar, reinforcement, steel, concrete, ultimate deformation, reinforced concrete, concrete deformation diagram, tension, compression, Bubnov-Galerkin method, systems of nonlinear algebraic equations

The paper deals with multilayer concrete rods of constant cross-section reinforced with steel reinforcement. It is assumed that there is a uniaxial stress state in the bar. Using the example of reinforcement with steels of grades A240, A400, A800, the influence of the degree of reinforcement on the bearing capacity of the bar is shown. Cases of reinforcement of both only one of the layers of the bar and reinforcement of all layers at the same time are considered.

Nemirovskii Yuri Vladimirovich,

Dr. Sci. Phys. & Math., Professor, Leading Research Worker, S. Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the RAS, Novosibirsk, Russia, Novosibirsk state technical University, Novosibirsk, Russia.

Tikhonov Sergey Vladimirovich,

PHD, Assoc. Prof., I. Ulyanov Chuvash State University, Cheboksary, Russia