New issues - Известия Казанского государственного архитектурно-строительного университета.

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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Zamaliev Farit Sakhapovich candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Fekir El Kahina engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Company INFRAFER The organization address: 16017, Algerie, City Rouiba
Title of the articleFeatures of strength assessment of a steel-concrete bending element with prestressing reinforcement without adhesion to concrete
Abstract.Problem statement. The aim of the research work is to analyze the methods for calculating prestressed metal and reinforced concrete beams and, based on them, to assess the stress-strain state of prestressed steel and reinforced concrete beams taking into account internal stresses. The tasks were to analyze domestic and foreign technical literature and to identify the state of the issue in assessing the stress-strain state of prestressed steel-concrete as isolated beams and beams as part of a ribbed monolithic overlap. Based on the analysis of the analytical expressions of prestressed metal and reinforced concrete beams, write down new dependences of the steel-reinforced concrete section, taking into account the features of the work of the composite prestressed section. Results. The main research results consist of an analysis of the current approach to assessing the strength of steel-reinforced concrete beams and slabs, metal and reinforced concrete shafts in identifying the stress-strain state of a bent prestressed steel-concrete element and deriving formulas for assessing the strength of prestressed insulated beams and beams in a ribbed ceiling. Conclusions. The significance of the results for the construction industry lies in the identification of the stress-strain state of a bent steel-reinforced concrete element. The research results, analytical expressions for assessing the strength of the T-section of steel-reinforced concrete floors can be used in the construction of ribbed plates and beams of new buildings in steel-reinforced concrete, wood-concrete, precast-monolithic reinforced concrete versions and in the restoration of ceilings of buildings that have served their standard life.
Keywords.steel-reinforced concrete beams and slabs, prestressed elements, stress state, voltage loss.
For citations:Zamaliev F.S., Fekir El Kahina. Features of strength assessment of a steel-concrete bending element with prestressing reinforcement without adhesion to concrete // Izvestiya KGASU. 2020. №1(51) P.76-84.


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