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Registration Number

0221U101613, 0119U001208 , R & D reports

Title

The recovery of damaged during the exploitation and battle actionreinforced concrete building structures performance

Head

Klimenko Yevgeniy V, Доктор технічних наук

Registration Date

23-01-2021

Organization

Odessa State Academy of Civil Engineering and Architecture

Description

 The object of the study is the reinforced concrete structures restored with carbon fiber and reinforced with prestressed metal cage, damaged by force cracks during exploitation and fighting. The subject of researchare bearing capacity, crack resistance and deformability, as well as features of stress-strain state of damaged structures, reinforced with these cages, under the action of repeated and alternating loads of high levels. The aim of the work is experimental-theoretical studies of bearing capacity, crack resistance and deformability reinforced concrete structures restored with carbon fiber and reinforced with prestressed metal cages, damaged by force cracks during exploitation and fighting. Research methods: collection, study and analysis of literature sources, formulation of research problems, development and application of an integrated approach using planning theory, deformation and deformation-force methods for determining their bearing capacity, diagrams of materials state, modern methods of measuring deformations, processing and analysis of obtained results, mathematical and physical modeling of stress-strain state of research elements, comparison of results of calculations with experimental data, formulation of the basic conclusions and development of recommendations on introduction of researches in design practice, general research methods: abstraction, analysis, synthesis, induction, deduction. According to the results of the performed researches, the main regularities of deformation, crack formation and destruction of ordinary and damaged deflection reinforced concrete, reinforced with carbon fiber and patented prestressed metal cages were revealed. Nonlinear SE modeling of the stress-strain stateof system "damaged beam – reinforcement cage" allowed to refine and develop new adequate calculation models of the bearing capacity of their supporting sections.

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Karpiuk Vasyl M
Klymenko Ievgenii V
Kostiuk Anatolii I
Krovyakov Sergiy K
Mishoutin Andriy V
Somina Yuliia A