Analysis of the normative calculation for the formation of cracks in flexible reinforced concrete racks at different stress-strain states of structures
Abstract
Analysis of the normative calculation for the formation of cracks in flexible reinforced concrete racks at different stress-strain states of structures
Incoming article date: 05.05.2021The results of experimental studies on the formation of cracks in reinforced concrete racks of two slenderness λh = 10 and 20, tested at three eccentricities of load application e0 = 0; 2.0cm (0.16h) and 4.0cm (0.32h). On the basis of the experimental data and the results of calculations on the formation of cracks, it was found that the values of the theoretical moments of cracking of the experimental compressed elements differ significantly from the experimental ones. An analysis was made of the influence of the eccentricity of the load application and the flexibility of the samples on the convergence of the theoretical and experimental moments of cracking in the samples, and the possible reasons for the change in the bearing capacity of the samples were also considered.
Keywords: concrete, reinforced concrete, compressed elements, flexibility, eccentricity, crack, crack resistance