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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.Zamaliev F.S. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Bikkinin E.G. – post-graduate 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 studies of the initial stress-strain state of steel-concrete composite beams and plates
Abstract.The article describes the experimental beams and slabs, the results of research into the behavior of beams and plates in the pre production stage during their manufacture and curing of concrete. We describe the experimental designs steel-concrete composite beams and slabs. As prototypes made T-section beams, consisting of a reinforced concrete slab and steel I-beam edges in, and as a model of overlapping taken concrete slab supported by four steel I-beam ribs from. Joint work plate with ribs provided the same section anchors positioned with a single step for beams and slabs. Shows the formwork design, providing compliance board members, excluding the impact of their stiffness of the beam during curing. Details describe the methodology of experimental research, what instruments are measured deflections of beams in the middle and at the ends of beams and deflections are determined as a hardening concrete. To measure stress in the steel beams, ribs used electrical strain gauges are connected to a measuring complex. The schedule of deflections and arching as a result of concrete shrinkage during the formation of the steel-concrete composite beam section. In the formation of the composite cross-section as a result of hardening concrete, there is a change of the stress-strain state of the beam. Presented stress distribution for the first and second week of hardening concrete, the analysis stresses on the height of the beam-edge. At the end of the article gives a general conclusion on the results of the research.
Keywords.the initial stress, steel-concrete composite beams, T-section, experiment, shrinkage, bend.
For citations:Zamaliev F.S., Bikkinin E.G. Experimental studies of the initial stress-strain state of steel-concrete composite beams and plates // Izvestiya KGASU. 2015. №2(32) P.149-153.


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