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Research of stress-deformed states of eccentrally compressed elements of annular section

The results of the study of eccentrically compressed reinforced concrete elements of an annular section are compared in terms of strength characteristics. The analysis carried out basically contains the use of a non-linear deformation model, which brings the behavior of concrete closer to real experimental conditions. A comparative analysis of the results of calculating the strength of reinforced concrete elements of an annular section according to the method proposed in the current set of rules, the author's program for determining the stress-strain state of a reinforced concrete column of an annular section, implemented in the MathCad software environment, and a numerical experiment in the Lira-SAPR software package is given. Calculations and schemes are given taking into account the possibility of conducting an experimental study.