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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.Fardiev R.F. – candidate of technical sciences, senior lecture E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Ashrapov A.H. – candidate of technical sciences, assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Mustafin A.I. – assistant 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 articleResearch on load-carrying capacity of hollow-core slabs under reduced support on joists
Abstract.The problem of ensuring the reliability of load-bearing reinforced concrete structures of residential buildings always remains priority research area. One of the ways to meet this challenge is discussed in the article experimental tests of full-scale fragments of structural floor slabs with bringing them to failure. Experimental studies are carried out on a test three-bay fragment with 5.8 m slabs under two support conditions: support of 40 mm, and without below support but slab connection made by grouting the joint with setting frames in prepared toothing at slab ends. Such kind of test method using measuring instruments provided objective data on the strength of new slab-to-beam joints and the whole slab. Tests to failure showed that the loss of strength at joints wasn’t found; no cracks under test cracking load were detected; span deflection under test load was several times less than maximum allowable. Slab failure occurred in the span at concrete compressive zone. Thus, the results of the study showed that at joints in question the floor slab has sufficient strength, stiffness, and crack resistance.
Keywords.slabs, support on joists, load-carrying capacity of slab, flexure.
For citations:Fardiev R.F., Ashrapov A.H., Mustafin A.I. Research on load-carrying capacity of hollow-core slabs under reduced support on joists // Izvestiya KGASU. 2014. №4(30) P.172-177.


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