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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.Abdrakhimova N.S. – assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Mironova U.V. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Shamsutdinova A.I. – student 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
Title of the articleExperimental and theoretical studies of plug joints reinforced concrete columns under shear force effect
Abstract.Analysis of the scientific and technical literature indicates prefabricated building’s joint responsibility for structural safety and reliability under static and seismic loading. According to numerous publications of domestic and foreign authors, in frame buildings the first signs of failure appear in the joints of the elements due to stress concentration. It is possible that at the stage of operation of the joints do not meet the requirements of reliability and durability due to a number of reasons: the action of non-project loads, the presence of joint and installation of manufacturing defects (non-project reinforcement, cracks in concrete, incomplete filling of joints, etc.). Therefore, to ensure the structural safety of the building and serviceability by strengthening the joints at the lowest cost is an urgent task. In this paper, we consider the strengthening of the plug joint concrete columns on the perception of lateral forces as the most dangerous factor, especially under the action of cyclic (seismic) loads. Experimental and theoretical study of three options for strengthening joint plug under the action of shear forces: the external reinforcement of composite material, steel cage with clamps without prestressing, pre-stressed steel cage with clamps. We present the design expression of the shear compliance plug joints of reinforced concrete columns.
Keywords.штепсельные стыки, усиление, стальная обойма, усиление углепластиком напряженно-деформированное состояние, компьютерное моделирование, расчетные выражения сдвиговой податливости.
For citations:Abdrakhimova N.S., Mironova U.V., Shamsutdinova A.I. Experimental and theoretical studies of plug joints reinforced concrete columns under shear force effect // Izvestiya KGASU. 2016. №3(37) P.118-128.


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