Polianskyi K. Stress-strain state and the bearing capacity of the inclined sections of damaged reinforced concrete beams

The object of research – damaged reinforced concrete beams of rectangular profile; aim – to create a computational model of deformation of reinforced concrete cross-beam systems taking into account crack formation on the basis of the numerical-analytical method of boundary elements; methods – empirical - conducting experimental studies of reinforced concrete beams of rectangular cross-section, which had artificial damage under static loads using modern measurement methods. Collection, study and analysis of publications conducted in the direction of the chosen topic of the dissertation, development of experimental research methods using the theory of experimental planning, numerical modeling, analysis and statistical processing of research results, comparison of results, abstraction, generalization, induction, deduction, formulation of basic conclusions and recommendations. Application of normative method of calculation of bearing capacity of reinforced concrete elements with expansion of its action in case of oblique bending and reasonable preconditions for calculation and results of comparison of the obtained theoretical results with experimental ones; results – for the first time during experimental researches new data are received and behavior of work of reinforced concrete beams of rectangular section which were damaged in the course of operation, under the influence of loading is investigated, influence of parameters of damage is studied and the degree of this influence at various runs prototypes and their stress-strain state, - improved the normative method of calculating the inclined sections of reinforced concrete rectangular beams that bend and undergo oblique bending due to mechanical damage during operation, - the normative method of calculation of inclined sections of the reinforced concrete rectangular elements bending was further developed; implemented – in the educational process at the Odessa State Academy of Civil Engineering and Architecture, in the educational process at the Donbas National Academy of Civil Engineering and Architecture, as well as in the design when designing the overhaul of the Center for Extracurricular Activities in Kramatorsk, in Dobropillya).