Influence of the Structure of the Cross-section of Load-bearing Structures on Their Deformation during Emergency Actions

Kolchunov, Vladimir; Androsova, N B

doi:10.1088/1757-899x/463/3/032067

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Concrete is the most widely used and the largest amount of building materials in civil engineering. In recent years, with the complex international situation and the rise of terrorism, as well as the development and use of various precisionguided weapons, many concrete structures are exposed to the threat of extreme external loading effects such as shock, vibration, and explosion [1,2], which puts forward new requirements for the study of concrete antistrike ability and structural safety evaluation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Fractal and Energy Consumption Characteristics of Concrete under Impact Loading

Dang

Zhou

et al. 2021

Geofluids

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In order to study the compressive deformation and energy evolution characteristics of concrete under dynamic loading, impact compression tests with impact velocities of 5, 6, and 7 m/s were carried out on concrete samples with aggregate volume ratios of 0, 32%, 37%, and 42%, respectively, using a split Hopkinson pressure bar test apparatus. The broken concrete pieces after destruction were collected and arranged. The fractal characteristics of fragmentation distribution of concrete specimens with different aggregate rates under impact were discussed, and the roughness of the fragment surface was characterized by the fractal dimension of the broken fragment and the crack surface energy was calculated. In addition, the analytical equation of the fractal dimension of the broken fragment and the crack surface energy was established. The relationship between the specimen energy absorption and the crack surface energy was compared and analyzed. The results show that the concrete specimens are mainly tensile split failure modes under different impact speeds. The fractal dimension, absorption energy, and crack surface energy all increase with the increase in impact speed and decrease with the increase in the aggregate rate. When the aggregate rate is different, the effective utilization rate of the absorbed energy is the largest when the aggregate content is 37%. The surface energy of the crack can be used to estimate the concrete dynamic intensity.

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Section: Introductionmentioning

confidence: 99%

Analysis of Fractal and Energy Consumption Characteristics of Concrete under Impact Loading

Dang

Zhou

et al. 2021

Geofluids

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Strength characteristics of load-bearing reinforced concrete structures of the Ostankino television tower

Мамин

Avdeev²,

Bobrov

et al. 2023

E3S Web of Conf.

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The article describes the design features of the Ostankino TV tower in Moscow. The main results of the earlier works of the load-bearing reinforced concrete structures of the TV tower column and foundations are presented in the article. The authors examined the internal and external surfaces of reinforced concrete structures of the entire height of the tower with selective defectoscopy and determined the actual strength of concrete by non-destructive methods. The figures of this work show the main structural reinforced concrete elements and a distribution graph of strength characteristics of the height of the structure. Despite the noticeable height changes, the concrete strength in all parts exceeds the value provided for in the project.

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Concrete characteristics of the main load-bearing structures of the Ostankino TV tower

Mamin¹,

Bobrov²,

Chaganov³

et al. 2023

AIP Conference Proceedings

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Influence of the Structure of the Cross-section of Load-bearing Structures on Their Deformation during Emergency Actions

Cited by 3 publications

References 3 publications

Analysis of Fractal and Energy Consumption Characteristics of Concrete under Impact Loading

Analysis of Fractal and Energy Consumption Characteristics of Concrete under Impact Loading

Strength characteristics of load-bearing reinforced concrete structures of the Ostankino television tower

Concrete characteristics of the main load-bearing structures of the Ostankino TV tower

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