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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.Lobov D.M. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kritsin A.V. – candidate of technical sciences E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Tikhonov A.V. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Nizhny Novgorod State University of Architecture and Civil Engineering The organization address: 603950, Russia, Nizhny Novgorod, Ilyinskaya st., 65
Title of the articleFeatures of reinforcing of the wooden elements strengthened by carbon fiber, at the static bend
Abstract.The paper describes a comparative study of two beams reinforced with carbon fiber One with a variable reinforcement and the other with a constant reinforcement throughout the whole section. Test both samples are in static bending. With the optional accessories, the loads are transmitted to the beam to simulate a uniformly distributed load. Thus, in the middle of the beam we can see pure bending. From a number of formulas determine geometric characteristics were derived dependences of the strength characteristics from the quantity reinforced material. According to the obtained dependencies were built graphics, clearly reflecting the effect of reinforcing element. During the tests for the study of collaboration wood with carbon fiber was marked by a rather large expense of reinforcing material, which now has a commensurate value. One of the options saving carbon fiber, similar to other types of reinforcing materials, like metal, for example, is a variable reinforcement. The main objective of this article describes the experiment was to prove that the significant savings of carbon fiber carrying capacity of beam with variable reinforcement is commensurate with the carrying capacity of beams reinforced throughout the whole section. This hypothesis was confirmed. However is observed difference in the deflections, visually as well as measuring instruments. The use of less carbon-fiber will be more likely to use it as an element of reinforcement for timber.
Keywords.Carbon fiber, carbon composite materials, variable reinforcement, tissue of carbon fibers, increased timber.
For citations:Lobov D.M., Kritsin A.V., Tikhonov A.V. Features of reinforcing of the wooden elements strengthened by carbon fiber, at the static bend // Izvestiya KGASU. 2013. №2(24) P.132-138.


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