Experimental investigation of selection of warm mode for high-performance self-stressing self-compacting concrete

Кришан, А Л; Narkevich, M.Yu.; Sagadatov, A I; Rimshin, Vladimir

doi:10.1088/1757-899x/456/1/012049

Cited by 10 publications

(3 citation statements)

References 1 publication

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“…During operation, concrete and reinforced concrete structures are exposed to various aggressive influences, incl. associated with high temperatures [1][2][3][4][5][6][7][8][9][10][11]. The influence of temperature effects on reinforced concrete structures, during operation, causes significant damage, which can lead to a complete loss of the bearing capacity of the structure.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Impact of High Temperature on the Strength of Reinforced Concrete Structures during Operation

Rimshin

Telichenko

Кришан

et al. 2021

KEM

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Presented here are the results of assessing the effect of elevated temperature on the strength characteristics of reinforced concrete structures during operation. Described here are the features of the technical inspection of structures subjected to temperature effects (after a fire). The strength class of reinforced concrete structures was determined before temperature exposure (in places that were not exposed to fire) and after in the course of the study. Presented are the results of measuring the strength of concrete by the direct method of pulling off with spalling, as well as the results of verification calculations of reinforced concrete structures exposed to temperature effects. When performing verification calculations, the percentage of reduction in the bearing capacity of structures was established. Based on the results of the study, the percentage ratio of the decrease in the strength of prefabricated reinforced concrete structures after a fire during the operation of the facility was established.

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Section: Introductionmentioning

confidence: 99%

Assessment of the Impact of High Temperature on the Strength of Reinforced Concrete Structures during Operation

Rimshin

Telichenko

Кришан

et al. 2021

KEM

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“…In addition to the prescribed emergency situations, emergency actions include shock impacts, which in most cases also lead to severe emergency situations. Emergency shock loads on buildings and structures, as well as seismic and emergency explosive, are classified as special impacts, since they are characterized by high intensity and rare repeatability [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Construction building systems protection under emergency exposure

et al. 2019

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The structural reliability of the building ensures the building safety as a whole and the safety of the population, therefore the issue of ensuring reliability arises primarily in the design process. Buildings must be protected from destruction during all types of force, as well as in the case of load-bearing structures destruction as a result of emergency. Emergency impact on an object is an unregulated impact that is created as a result of an object getting into a special situation and can lead to its accident. The causes of structures progressive collapse are considered in this article. The main methods and methods of protecting buildings from progressive destruction are given. The calculation analysis of the monolithic reinforced concrete building frame for progressive collapse according to the method of possible damage is performed. There are many calculated and constructive proposals for solving the problems of counteracting the progressive destruction that can be divided into three categories: secondary protection measures, indirect design and direct design. In this article the resulting reinforcement of structural elements is determined taking into account the structural requirements for the continuity of longitudinal reinforcement, the minimum percentage of reinforcement. They are determined in the necessary places of additional reinforcement depending on the accepted permanent (background) reinforcement of the floors.

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“…The strength resistance of reinforced concrete is collectively determined by the properties of its components and the specifics of their joint work, including the adhesion of reinforcement to concrete. At the same time, the strength resistance of concrete, reinforcement, and adhesion between them are distinguished by the nonlinearity of the relationship between stresses and strains, creep, a certain irreversibility of strains, age wear; concrete responds to changes in the physicochemical and pyrometric characteristics of the medium, on the history and time conditions of loading and impacts [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Residual resource of power resistance during building structures deformation

2019

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Modern scientific research and design developments, based on the fundamental principles of physics, mechanics and thermodynamics, are developing in a phenomenological direction. This implementation is found both in traditional integrated models of reinforced concrete using the advantages of computer technology, and in discrete models following the grid methods of solid deformable body mechanics. Discrete models in content and chronology over time are hereditary with respect to integral models. The theoretical basis for calculating the residual life of the force resistance to deformation, determines the stiffness of the cross sections of reinforced concrete elements with a maximum bending moment and with zero bending moment are presented in this article.

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Experimental investigation of selection of warm mode for high-performance self-stressing self-compacting concrete

Cited by 10 publications

References 1 publication

Assessment of the Impact of High Temperature on the Strength of Reinforced Concrete Structures during Operation

Assessment of the Impact of High Temperature on the Strength of Reinforced Concrete Structures during Operation

Construction building systems protection under emergency exposure

Residual resource of power resistance during building structures deformation

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