Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element
One of the main components of the economic development of the Russian Federation is the current trend in the development of the territories of the Far North and the Arctic. The need for such development is enshrined at the state level in various programs. Experiments on the study of the effect of ne...
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Moscow State University of Civil Engineering (MGSU)
2023
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Online Access: | https://doi.org/10.22227/2949-1622.2023.4.3-12 https://doaj.org/article/337d96b9bd4e44b6906d953e58f26d03 |
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ftdoajarticles:oai:doaj.org/article:337d96b9bd4e44b6906d953e58f26d03 2024-09-09T19:28:06+00:00 Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element Andrey D. Istomin Victoria A. Petrova 2023-10-01T00:00:00Z https://doi.org/10.22227/2949-1622.2023.4.3-12 https://doaj.org/article/337d96b9bd4e44b6906d953e58f26d03 EN RU eng rus Moscow State University of Civil Engineering (MGSU) https://www.g-b-k.ru/jour/article/view/28 https://doaj.org/toc/2949-1622 https://doaj.org/toc/2949-1614 2949-1622 2949-1614 doi:10.22227/2949-1622.2023.4.3-12 https://doaj.org/article/337d96b9bd4e44b6906d953e58f26d03 Железобетонные конструкции, Vol 4, Iss 4, Pp 3-12 (2023) centrally tensioned reinforced concrete element climatic and technological negative temperature deformation-strength properties of reinforcement strength modulus of elasticity cracking Materials of engineering and construction. Mechanics of materials TA401-492 article 2023 ftdoajarticles https://doi.org/10.22227/2949-1622.2023.4.3-12 2024-08-05T17:48:54Z One of the main components of the economic development of the Russian Federation is the current trend in the development of the territories of the Far North and the Arctic. The need for such development is enshrined at the state level in various programs. Experiments on the study of the effect of negative temperatures on the operation of reinforcing steel show that with decreasing temperature, an increase in strength and modulus of elasticity is observed. At the same time, there are no unified recommendations on the deformation and strength properties of reinforcement for calculating reinforced concrete structures under conditions of low and ultra-low negative temperatures. RF standards do not take into account the influence of climatic (up to -70°C) and technological (up to -196°C) negative temperatures on the deformation and strength characteristics of reinforcing steel.The purpose of this work was to experimentally study the effect of negative temperatures (up to -196°C) on the deformation-strength properties of reinforcement, concrete and reinforced concrete rod elements. Concrete prisms 10x10x40 cm, samples of reinforcement of a periodic profile of class A400 and reinforced concrete prismatic rods with a section size of 12x18 cm and a reinforcement percentage of 1.45% were taken as prototypes. At the same time, the negative temperature of the tests varied. As a result of the studies carried out with centrally stretched reinforced concrete elements, it was found that lowering the temperature to -165°С leads to an in-crease in the cracking force by 162%; strength by 85%. Empirical dependencies are proposed to determine the deformation-strength characteristics of reinforcing steel, depending on the negative temperature. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Reinforced concrete structures 4 4 3 12 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English Russian |
topic |
centrally tensioned reinforced concrete element climatic and technological negative temperature deformation-strength properties of reinforcement strength modulus of elasticity cracking Materials of engineering and construction. Mechanics of materials TA401-492 |
spellingShingle |
centrally tensioned reinforced concrete element climatic and technological negative temperature deformation-strength properties of reinforcement strength modulus of elasticity cracking Materials of engineering and construction. Mechanics of materials TA401-492 Andrey D. Istomin Victoria A. Petrova Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element |
topic_facet |
centrally tensioned reinforced concrete element climatic and technological negative temperature deformation-strength properties of reinforcement strength modulus of elasticity cracking Materials of engineering and construction. Mechanics of materials TA401-492 |
description |
One of the main components of the economic development of the Russian Federation is the current trend in the development of the territories of the Far North and the Arctic. The need for such development is enshrined at the state level in various programs. Experiments on the study of the effect of negative temperatures on the operation of reinforcing steel show that with decreasing temperature, an increase in strength and modulus of elasticity is observed. At the same time, there are no unified recommendations on the deformation and strength properties of reinforcement for calculating reinforced concrete structures under conditions of low and ultra-low negative temperatures. RF standards do not take into account the influence of climatic (up to -70°C) and technological (up to -196°C) negative temperatures on the deformation and strength characteristics of reinforcing steel.The purpose of this work was to experimentally study the effect of negative temperatures (up to -196°C) on the deformation-strength properties of reinforcement, concrete and reinforced concrete rod elements. Concrete prisms 10x10x40 cm, samples of reinforcement of a periodic profile of class A400 and reinforced concrete prismatic rods with a section size of 12x18 cm and a reinforcement percentage of 1.45% were taken as prototypes. At the same time, the negative temperature of the tests varied. As a result of the studies carried out with centrally stretched reinforced concrete elements, it was found that lowering the temperature to -165°С leads to an in-crease in the cracking force by 162%; strength by 85%. Empirical dependencies are proposed to determine the deformation-strength characteristics of reinforcing steel, depending on the negative temperature. |
format |
Article in Journal/Newspaper |
author |
Andrey D. Istomin Victoria A. Petrova |
author_facet |
Andrey D. Istomin Victoria A. Petrova |
author_sort |
Andrey D. Istomin |
title |
Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element |
title_short |
Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element |
title_full |
Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element |
title_fullStr |
Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element |
title_full_unstemmed |
Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element |
title_sort |
effect of negative temperatures on the strength and deformability of a reinforced concrete element |
publisher |
Moscow State University of Civil Engineering (MGSU) |
publishDate |
2023 |
url |
https://doi.org/10.22227/2949-1622.2023.4.3-12 https://doaj.org/article/337d96b9bd4e44b6906d953e58f26d03 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Железобетонные конструкции, Vol 4, Iss 4, Pp 3-12 (2023) |
op_relation |
https://www.g-b-k.ru/jour/article/view/28 https://doaj.org/toc/2949-1622 https://doaj.org/toc/2949-1614 2949-1622 2949-1614 doi:10.22227/2949-1622.2023.4.3-12 https://doaj.org/article/337d96b9bd4e44b6906d953e58f26d03 |
op_doi |
https://doi.org/10.22227/2949-1622.2023.4.3-12 |
container_title |
Reinforced concrete structures |
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4 |
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4 |
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3 |
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12 |
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1809897387528814592 |