Investigation of Stress-Strain Parameters in Rc Beams Using Dic

The article discusses the assessment of the state of reinforced concrete beams using the digital image correlation method and submicron indicators. Bending elements are the most widely used in reinforced concrete structures, so the ability to accurately evaluate and use new methods that simplify the labor intensity of the process and increase the accuracy of measuring deformations and load-bearing capacity is extremely important. The purpose of the study is to evaluate both experimental and theoretical investigations of the deformation and load-bearing capacity of a reinforced concrete beam under load. As a result of the study, the values of the deformation were determined. Comparative graphs were constructed for the submicron sensor values, digital correlation results, and theoretical values obtained by the finite element method using the "LIRA" software package. The constructed diagrams show good convergence, with experimental and theoretical results values differing from theoretical ones by no more than 5%.