Abstract

The purpose of the study is to adapt the method of limit equilibrium for the calculation of a reinforced, low-density concrete monolithic slab structure using prefabricated low-density concrete blocks. A numerical study was conducted based on the use of combined slab models and theories of material deformation. As a result, we obtained data on the stress-strain state of the structure and compared them using various theories and models. It has been established that calculating the combined slab structure using a method based on the finite element method (FEM) makes it possible to account for the nonlinear properties of concrete and reinforced concrete, and also affects the distribution of bending moments and expansion forces between the cross beams. Based on the limit equilibrium method, recommendations have been developed for determining the distribution of bending moments along linear plastic hinges. The practical sig-nificance of the study is to identify the features of the stress-strain state and to establish the relationship between the calculation results and experimental data.

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