The Influence of Concrete Structure on the Destruction of Reinforced Concrete Bended Elements

Vitaliy, Dorofeyev; Pushkar, Natalia; Hanna, Zinchenko

doi:10.1007/978-3-030-57340-9_13

Cited by 11 publications

(2 citation statements)

References 17 publications

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“…The orientation of such a crack is associated with a rather complex stress state of both the entire beam and its individual sections. An inclined crack develops towards the support and to the place of application of the load, while repeating the trajectory of hereditary cracks [10][11][12]. An increase in load of more than 0.8Vu causes the opening of an inclined crack and the displacement of its edges up to the failure of the beam.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Technological Damage on the Properties and Reliability of Construction Materials and Structures

Dorofeev

Myronenko

Pushkar

2022

AMM

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The effect of the quantitative and qualitative composition of mixed binders on the physical and mechanical properties of cement compositions has been experimentally established. A cement stone with a different amount and dispersion of mineral fillers was considered. The research results showed that the plastic strength of the hardening system depends on its initial composition. The defects embedded in the material during its technological processing into the product determine the local stress-strain state of the structure, the nature of cracking and the fracture surface. The effect of technological damage on the mechanical characteristics and the nature of cracking of cement compositions are shown. The possibility of reducing the material consumption of construction materials by 15-21 wt.% due to the use of fillers that are optimal in appearance and quality composition has been proved.

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Section: Resultsmentioning

confidence: 99%

The Effect of Technological Damage on the Properties and Reliability of Construction Materials and Structures

Dorofeev

Myronenko

Pushkar

2022

AMM

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“…One of the best solutions to improve the crack resistance of concrete is adding steel anchor fiber and a hardening accelerator to increase it (Kos et al, 2019b). The appearance of defects (such as cracks) is often related to a concrete structure change (Dorofeyev et al, 2021). It was established that a crack that should be safe, from the point of view of the strength of the large aggregates, can be critical for the cement matrix.…”

Section: Literature Reviewmentioning

confidence: 99%

Bearing capacity of reinforced concrete beams with and without damages of rebar

Khmil,

Blikharskyy,

Vegera

et al. 2023

Production Engineering Archives

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The article presents the results of the bearing capacity of reinforced concrete beams with and without damages of internal reinforcement. One of the main elements of the production of the reinforced concrete industry is beams. The analysis of the experimental tests showed that the bearing capacity of reinforced concrete beams with damaged tensile main reinforcement decreases according to control undamaged samples due to the reduction of the reinforcement cross-section. However, the bearing capacity of reinforced concrete beams with tensile main reinforcement Ø20А500C, damaged to the cross-section area equal the rebar Ø16mm is more on 3.7… 24.0% than the bearing capacity of reinforced concrete beams with undamaged Ø16mm rebar. This is due to the non-uniform material properties of used thermally strengthened reinforcement A500C. When during testing the tensile main reinforcement is damaged by drilling a hole, the most damages occur in the core with lower physical and mechanical characteristics. In contrast, the outer thermally strengthened layer with bigger physical and mechanical characteristics is damaged to a lesser extent. The analysis of the obtained results shows that during design of reinforced concrete beams with damaged, it is necessary to consider using thermally strengthened non-uniform steel A500C as tensile main reinforcement.

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Calculation of Eccentrically Compressed RC Columns Strengthened by CFRP Under Different Load Level

Blikharskyy

Panchenko

Sobko

et al. 2022

Lecture Notes in Civil Engineering

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The Influence of Concrete Structure on the Destruction of Reinforced Concrete Bended Elements

Cited by 11 publications

References 17 publications

The Effect of Technological Damage on the Properties and Reliability of Construction Materials and Structures

The Effect of Technological Damage on the Properties and Reliability of Construction Materials and Structures

Bearing capacity of reinforced concrete beams with and without damages of rebar

Calculation of Eccentrically Compressed RC Columns Strengthened by CFRP Under Different Load Level

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