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Registration Number

0225U003756, (0124U004091) , R & D reports

Title

Technical condition and strengthening of damaged reinforced concrete structures using the method of digital image correlation

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Технічний стан та підсилення пошкоджених залізобетонних конструкцій з використанням методу цифрової кореляції зображень

Head

Blikharskyi Yaroslav Z., Доктор технічних наук

Registration Date

13-08-2025

Organization

Blikharskyi Yaroslav Z.

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The purpose of the work is to develop a method of remote diagnostics, determination of the actual technical condition and strengthening of damaged reinforced concrete structures using the method of digital image correlation and wireless computerized submicron indicators. The achievement of the set goal is carried out on the basis of solving the following research problems: - to form information and technical support for the adaptation and implementation of the method of digital correlation of images in the study of reinforcement, concrete and the stress-strain state of reinforced concrete bent structures; - to develop a method of experimental tests using the method of digital image correlation and to perform a study of the influence of different degrees of damage to the working fittings on the parameters of the stress-strain state of reinforced concrete beams; - to develop proposals for determining the residual load-bearing capacity according to the current standards for the design of reinforced concrete bent elements, which would take into account the change in the physical and mechanical characteristics of the working reinforcement due to its damage; - to develop a methodology and perform experimental studies of reinforcement of reinforced concrete structures with carbon tapes, high-strength composite mortar and reinforced concrete brackets, which would take into account different percentages of the initial load level; - to develop a methodology and perform experimental studies in the remote mode of restored reinforced concrete structures with damage to the compressed and stretched zones by composite materials using the method of digital image correlation; - to develop and test the method of theoretical calculation of parameters of the stress-strain state of damaged reinforced concrete structures, reinforced with carbon tape and reinforced concrete bracket, which would take into account different percentage of damage and initial load level, using current design st

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The object of the study is the bearing capacity of RC beams with damage, restoration, and strengthening. The aim of the work is to experimentally and theoretically determine the parameters of the stress-strain state of RC beams with damaged reinforcement, RC beams restored in the compressed zone of concrete with a high-strength repair mortar by the RC sleeve-shirt type, and RC beams with damaged reinforcement strengthened with carbon tape. Research methods are analytical studies of available sources on the topic of the research work, experimental and theoretical studies of RC beams with damaged reinforcement, RC beams restored in the compressed zone of concrete with a high-strength repair mortar by the RC sleeve-shirt type, and RC beams with damaged reinforcement strengthened with carbon tape, and their comparative analysis. Scientific novelty of the obtained results: new results of experimental and theoretical studies of the bearing capacity and deformability of damaged, restored with composite materials, and strengthened with carbon tape RC beams were obtained. According to the results of the scientific research work, 32 scientific papers were published, of which 23 publications are indexed in the scientometric databases Scopus and/or Web of Science, in particular, 11 articles are included in the quartiles Q1–Q2 according to the classification of the specified databases, 13 conference materials in the scientometric databases Scopus, 7 articles in professional publishing houses of Ukraine, 1 article in a periodical foreign publishing house. On the topic of the scientific research work, participation was taken in 2 economic contract topics, 3 state and 1 foreign project, and 2 applications for foreign projects were submitted. The results of experimental and theoretical research were used by Spetsproektbud LLC, KOMFORTBUD LLC, and SIMENERGO LLC.

Product Description

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2025-08-13