Energy-efficiency increase of reinforced concrete columns with recessed working fittings

Muradyan, Viktor; Mailyan, Dmitry; Lyapin, A. A.; Чубаров, В Е

doi:10.1088/1755-1315/90/1/012032

Cited by 7 publications

(3 citation statements)

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“…The developments of using prestressed structures are still ongoing [5][6][7]. A special place is taken by composite materials for the purpose of their use for flexible members as internal working fittings [8][9][10] and external ones, used for strengthening of reinforced concrete structures [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Strength of Flexible Compressed Elements when Changing the Options of Composite Reinforcement and Application of the Load

Polskoy

2018

MSF

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The paper presents the research results of the strength of flexible () compressed elements reinforced with various options of external composite reinforcement. The purpose of the experiment is to determine various options of external transverse reinforcement efficiency for different types of stress – strain state of reinforced samples. Another task is to determine the possibility of reinforcing compression elements that exceed the normalized values in the ratio of section dimensions and elements flexibility.

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Section: Introductionmentioning

confidence: 99%

Strength of Flexible Compressed Elements when Changing the Options of Composite Reinforcement and Application of the Load

Polskoy

2018

MSF

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“…Variable factors were: ratio ℓ 0 / i red -26. "Numerical experiment" made it possible to analyze the effect of the class of lightweight concrete, the level of compression and other factors (Figure 1) on the sags from transverse force and strength along the horizontal cross-section of three-layer elements [12,13,14,15]. For all elements, at ℓ 0 / i red , from 26.4 to 79.2, the ratio ƒ q / ƒ m decreases.…”

Section: Experimental Program and Research Resultsmentioning

confidence: 99%

Design Features of Three-Layer Slab Reinforced Concrete Structures

Belyaev

Nesvetaev

Mailyan

2018

MSF

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The creation of the efficient reinforced concrete structures, that allows to reduce the material consumption as well as the labor costs, is the most important task today. One of the possible ways of solving this problem is the design and wide application of multilayer structures in which high mechanical, heat engineering and acoustic properties are provided due to the combination of high strength of heavy concrete and low strength of light concrete with low heat conductivity. The advantages of three-layer reinforced concrete structures are shown. The proposals have been made to take into account the sag and the classes of lightweight concrete of such elements.

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“…Among such scientific works are: the high-strength concrete and their design features study [1,2]; effective structures with the use of self-sealing high-strength and light concretes on porous aggregates [3,4]; prestressed elements with variable prestressing by element length [5,6]; reinforced concrete structures study, strengthened by composite materials with different kinds of tensely-deformed conditions.…”

Section: Introductionmentioning

confidence: 99%

The strength of compressed structures with CFRP materials reinforcement when exceeding the cross-section size

et al. 2018

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Abstract. The increase of high-rise construction volume or «High-Rise Construction» requires the use of high-strength concrete and that leads to the reduction in section size of structures and to the decrease in material consumption. First of all, it refers to the compressed elements for which, when the transverse dimensions are reduced, their flexibility and deformation increase but the load bearing capacity decreases. Growth in construction also leads to the increase of repair and restoration works or to the strengthening of structures. The most effective method of their strengthening in buildings of «High-Rise Construction» is the use of composite materials which reduces the weight of reinforcement elements and labour costs on execution of works. In this article the results of experimental research on strength and deformation of short compressed reinforced concrete structures, reinforced with external carbon fiber reinforcement, are presented. Their flexibility is λh=10, and the crosssection dimensions ratio b/h is 2, that is 1,5 times more, than recommended by standards in Russia. The following research was being done for three kinds of strained and deformed conditions with different variants of composite reinforcement. The results of the experiment proved the real efficiency of composite reinforcement of the compressed elements with sides ratio equal to 2, increasing the bearing capacity of pillars till 1,5 times. These results can be used for designing the buildings of different number of storeys.

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Energy-efficiency increase of reinforced concrete columns with recessed working fittings

Cited by 7 publications

References 0 publications

Strength of Flexible Compressed Elements when Changing the Options of Composite Reinforcement and Application of the Load

Strength of Flexible Compressed Elements when Changing the Options of Composite Reinforcement and Application of the Load

Design Features of Three-Layer Slab Reinforced Concrete Structures

The strength of compressed structures with CFRP materials reinforcement when exceeding the cross-section size

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