Arleninov P.
Arleninov P.

Arleninov P.
ведущий научный сотрудник, кандидат технических наук, Научно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона им. А.А. Гвоздева (НИИЖБ им. А.А. Гвоздева) АО «НИЦ «Строительство»


Publications

The current state of nonlinear calculations of reinforced concrete structures
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Reinforced concrete is a non-linear material. This nonlinearity is determined by the nonlinearity of the behavior of concrete during compression and tension, the formation of cracks in tension during the deformation of the structure, as well as the nonlinearity of the work of the reinforcement. Accounting for non-linear work of reinforced concrete is necessary to obtain reliable data on the stress-strain state and strength of structures. But unlike, for example, from steel, the nonlinearity of reinforced concrete manifests itself in a more complex form.
At present, the calculation of buildings and structures, as well as difficult working units of structures is performed using computer programs. The results of numerical studies published in scientific publications and in the reports of scientific conferences show that, unlike metals, it is still extremely difficult to obtain calculated results for the stress-strain state of reinforced concrete structures strictly corresponding to the experimental data.

Calculation of the central and eccentrically compressed pipe-concrete structures strength
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The paper presents the results of testing full-size flexural pipeconcrete structures, which are used in the actual building objects. Technology of the structures met the construction conditions. Formulae for structural design of such constructions are presented. The formulae are based on the classical principle of structural mechanics as a condition of equilibrium of external and internal forces acting in the cross-section, as well as the conditions of equilibrium of these forces moments. Comparison of experimental and calculated data has been performed. Confirmation of the fact that the formulae developed give the results in good agreement with the experimental values is presented.