Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia (RUDN University)1893410.22363/1815-5235-2018-14-3-233-241Research ArticlePROBLEM OF NUMERICAL ANALYSIS OF DEFORMATION OF BINDED REINFORCED CONCRETE ELEMENTSMarkovichA S<p>PhD in Technical Sciences, Associate Professor of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples' Friendship University of Russia (RUDN University). Scientific interests: structural mechanics, numerical methods for calculating structures, computer modeling</p>markovich.rudn@gmail.comAbu MakhadiMokhammed Ibragim<p>PhD in Technical Sciences, Associate Professor of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples' Friendship University of Russia (RUDN University). Scientific interests: soil mechanics, foundations, building materials, numerical methods for calculating structures</p>moham_d@mail.ruMiloserdovaD A<p>Master’s Degree Student of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples' Friendship University of Russia (RUDN University). Scientific interests: calculation and design of buildings and structures</p>milos-dasha@yandex.ruAkifevaK S<p>Master’s Degree Student of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples' Friendship University of Russia (RUDN University). Scientific interests: calculation and design of buildings and structures</p>kristina_akifeva_svna@mail.ruAsadM Ali<p>Master’s Degree Student of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples' Friendship University of Russia (RUDN University). Scientific interests: calculation and design of buildings and structures</p>moh_664@yahoo.comPeoples’ Friendship University of Russia (RUDN University)1512201814323324122072018Copyright © 2018, Markovich A.S., Abu Makhadi M.I., Miloserdova D.A., Akifeva K.S., Asad M.A.2018<p>In 1938 standards were adopted in which the method of limiting equilibrium, developed by prof. А.А. Gvozdev and V.I. Murashev, was recommended for the calculation of reinforced concrete structures. From the very beginning, the proposed method caused a sharp discussion in the scientific community, since it contained number of contradictions. Most of the contradictions in the theory of A.A. Gvozdev became part of modern Russian standards. Until now the method of limiting equilibrium remains the main method for calculating reinforced concrete structures for strength. In recent years, a discussion has been developed on the transition to the deformation model of reinforced concrete resistance used by the European codes. In view of this, the updated version of domestic regulations allows the calculation of reinforced concrete structures using a nonlinear deformation model. However, there is a limited number of studies confirming the consistency of the proposed deformation model. In this regard we performed a series of calculations of rigidity of hinged supported on the basis of the theoretical and deformation models of the Russian standards. The calculation was carried out by the finite element method using the model of nonlinear deformation of concrete.</p>reinforced concrete structureslimit equilibrium methodtheory of deformation of concretephysical nonlinearityfinite element methodbending elementsжелезобетонные конструкцииметод предельного равновесиятеория деформирования бетонафизическая нелинейностьметод конечных элементовизгибаемые элементы[Murashev V.I. (1938). Raschet zhelezobetonnykh elementov po stadii razrusheniya [Calculation of reinforced concrete elements by the stage of destruction]. Moscow – Leningrad: Gosstroiizdat, 184. (In Russ.)][Code of Practice 52-103-2007 (2007). Concrete monolithic building structures. The Research Center of Construction, Moscow. (In Russ.)][Code of Practice 63.13330.2012. (2013). Concrete and reinforced concrete structures. Design requirements. The Research Center of Construction, Moscow. (In Russ.)][Code of Practice 52-101-2003. (2005). 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