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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.Antakov A.B. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Antakov I.A. – assistent 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 articleImproving the method for calculating the normal sections of bent elements with polymer composite reinforcement
Abstract.The article presents the position of improved method for calculating the strength of the normal sections of bent elements SP 63.13330.2012 reinforced by composite fittings. The study used the rods of fiberglass and basalt plastic reinforcement. The calculation results by of the proposed method were compared with similar data of guidelines: of the USA – ACI 440.1R-06, of the EU – fib Bulletin 40, of Russia – SP 63.13330.2012 with amendment № 1 and project SP. During the analysis of existing methods of calculating a number of conclusions were made: – the bearing capacity value, calculated according to the methods of the project SP, SP 63.13330.2012 with Amendment № 1, ACI 440.1R-06 and fib Bulletin 40 has differences in the results from 1,6 % to 40 %; – underestimation of the bearing capacity design values due to the use of excessive safety factors and the method of calculation of the project SP with the unreliable nature of the destruction of the structures of the crushing of the concrete in the compressed zone. Reduced design resistance to tension FRP results in the precise definition of the nature of the destruction of a flexible member and over-reinforced structures; – due to the fact that the value of the bond composite reinforcement with concrete is not constant, and depends on the type of FRP, the manufacturer, the operating conditions, the design resistance of the bond FRP bars should be determined considering actual properties of the valve.
Keywords.non-metallic fitting, strength of normal sections, concrete structures, flexural members.
For citations:Antakov A.B., Antakov I.A. Improving the method for calculating the normal sections of bent elements with polymer composite reinforcement // Izvestiya KGASU. 2015. №4(34) P.153-160.


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