ОЦІНКА МІЦНОСТІ ЗЧЕПЛЕННЯ СТРИЖНЕВОЇ АРМАТУРИ З БЕТОНОМ

Abstract

All known hypotheses have three main groups.
1 group. The coupling is considered as the result of the friction between the reinforcement and the concrete. Analytical dependencies are deduced from the physical side of the phenomenon taking into account the mechanical and physical properties of the materials;
2nd group. The nature of the grip is determined by the magnitude and distribution of the mutual shifts q(x) and τ(x) in the reinforcement along the laying is determined by differentiating the experimental data of the displacement curve;
3rd group. The analysis uses the distribution diagrams of longitudinal stresses in the reinforcement σ(x) obtained from the experiment. The tension stresses τ(x) are found from the equation of equilibrium, substituting in the expression τ (x) = ƒσ(x), the data are obtained from the experiments.