Determination of stress-strain state of reinforced slabs from non-linear material taking into account the influence of aggressive environment

• Autorzy: Anatolyevich Treschev A. , Valeryevich Bashkatov A. , Grigoryevich Telichko V. , Anatolyevich Bobryshev A. , Nurgaleevich Shafigullin L.

Identyfikatory

URI

10.22630/PNIKS.2018.27.4.46

• Języki publikacji: EN

Abstrakty

EN

In this article, the construction of finite-elemental model of definition of stress-strain state of reinforced concrete plates in conditions of active deformation and simple loading in combination with long-term influence of chloride-containing operating environment. Non-linear behavior of concrete is simulated based on the determining relations proposed by Treschev, cracking and plastic deformations in armature are taken into account. The impact of the aggressive environment is taken into account in accordance with the model proposed by Petrov and Penina. In the article all basic correlations of finite elements method in convenient for software realization on a computer are given. As the object of research for this article is a concrete plate reinforced with steel reinforcement in a stretched area, which is under the joint influence of mechanical load and aggressive chloride-containing environment on the protective polymer–concrete layer. The load was taken evenly distributed across the entire slab area. At the solution of this problem the non-linear sensitivity of the basic material (concrete) to the type of the tense condition, plastic deformations in armature, degradation of a protective concrete at influence of external aggressive environment are taken into account. In the article some especially characteristic results of mathematical modeling of the specified model problem are given. The obtained results of joint influence on the plate of mechanical load and aggressive environment are analyzed.

Słowa kluczowe

EN

finite elements; reinforced plate; chloride-containing operating environments; polymer; non-linear sensitivity; tense state

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
• Rocznik: 2018
• Tom: Vol. 28, No. 4
• Strony: 488--503
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr.

Twórcy

autor

Anatolyevich Treschev A.

• Tula State University (TSU), Department of Engineering, Constructional Materials and Structures, pr. Lenina 92, Tula 300012, Russia

autor

Valeryevich Bashkatov A.

• Tula State University (TSU), Department of Engineering, Constructional Materials and Structures, pr. Lenina 92, Tula 300012, Russia

autor

Grigoryevich Telichko V.

• Tula State University (TSU), Department of Engineering, Constructional Materials and Structures, pr. Lenina 92, Tula 300012, Russia

autor

Anatolyevich Bobryshev A.

• Federal University Department of Materials, Technologies and Quality, Automobile Department of the Naberezhnye Chelny Institute (branch) of the Kazan (Volga region) Soyumbike Avenue 10 A, 423800 Naberezhnye Chelny, Republic of Tatarstan

autor

Nurgaleevich Shafigullin L.

• Federal University Department of Materials, Technologies and Quality, Automobile Department of the Naberezhnye Chelny Institute (branch) of the Kazan (Volga region) Soyumbike Avenue 10 A, 423800 Naberezhnye Chelny, Republic of Tatarstan

Bibliografia

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• Fedosov, S.V., Rumyantseva, V.E. & Konovalova, V.S. (2018). Control of processes of corrosion destruction of reinforced concrete in conditions of chloride aggression. In RAASN fundamental research and applied research on scientific support for the development of architecture, urban planning and construction science in the Russian Federation in 2017, Moscow, RAACS, 480-487.
• Gehler, W. & Amos, H. (1932). Experiments with cross-wise movement elevated panels. Folder 70. Berlin: Ernst & Sohn.
• Karpenko, N.I. (1976). The theory of deformation of reinforced concrete with cracks. Moscow: Stroiizdat.
• Parfenov, S.G. & Okusok, S.A. (2017). Application of deformation models for the calculation of crack resistance of reinforced concrete elements. In RAASN fundamental research and applied research on scientific support for the development of architecture, urban planning and construction science in the Russian Federation in 2016, Moscow, RAACS, 276-279.
• Petrov, V.V., Inozemcev, V.K. & Sineva, N.F. (1996). The theory of induced heterogeneity and its application to the problem of stability of plates and shells. Saratov: SSTU.
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• Petrov, V.V. & Penina, O.V. (2008). Determination of durability and reserve of carrying capacity of nonlinear-elastic plates at bending in aggressive environments. Herald of Sstu, 4, 16-22.
• Seljaev, P.V. (2006). Diagrams of deformation of composite materials at influence of liquid aggressive enviroment. In Problems of strength of structural elements under the action of loads and working environments. SSTU, 46-52.
• Seljaev, V.P., Punchina, A.A., Tereshkin, I.P., Seljaev, P.V. & Kechutkina, E.L. (2018). Forecasting of resource of flexible elements made of polyester concretes exhibited a 15% strength sodium hydroxide solution. In RAASN fundamental research and applied research on scientific support for the development of architecture, urban planning and construction science in the Russian Federation in 2017, Moscow, RAACS, 439-448
• Shamshina, K.М. (2017a). Rationing the degree of aggressiveness of different environments to concrete and reinforced concrete. In Sustainable development of the region: architecture, construction, transport. Materials of the 4th international scientific-practical conference of the Institute of architecture, construction and transport of Tambov State Technical University, TSTU, 212-215.
• Shamshina, K.М. (2017b). Strength and rigidity of direct models of reinforced concrete structures with corrosion longitudinal cracks in the protective layer of concrete. In Sustainable development of the region: architecture, construction, transport. Materials of the 4th international scientific-practical conference of the Institute of architecture, construction and transport of Tambov State Technical University, TSTU, 216-219.
• Treschev, A.A. (2016). Theory of deformation and strength of sensitive to type of stress materials. Defining correlations. Moscow: Raacs Tsu.
• Treschev, A.A. & Telichko, V.G. (2003a). A hybrid finite element for calculating slabs and shells with complex properties. News of Universities. Construction, 5, 17-23.
• Treschev, A.A. & Telichko, V.G. (2003b). Modeling of stress-strain state of shell structures from reinforced concrete. News of TSU. Construction Materials, Design and Construction, 8, 147-161.
• Treschev, A.A., Telichko, V.G. & Bashkatov, A.V. (2014). Construction of a mathematical model of deformation of a complex reinforced concrete slab with polymer-concrete layer under the influence of aggressive medium. Herald of MSSU, 3, 126-132.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).