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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.Kuznetsov Ivan Leonidovich doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Penkovcev Sergey Aleksandrovich candidate of technical sciences, senior lecturer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Gimranov Linur Rafailevich candidate of technical sciences, associate professor 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 articlePerforated girders with perforated of steel profiles
Abstract.Problem statement. Perforated girders as structural members of buildings and other structural shapes by their structural form can be assigned in between solid plate girders and lattice structures and can be utilized when large spans need to be covered with moderate or small loads. The goal of the study is development of new structural shape of the girders with perforated web member which excludes cutting and milling process of solid hot rolled I-beams, requiring no sophisticated equipment or machinery during fabrication process and at the same time accommodating equal stress distribution principle in flange members. Results. Conducted analysis of production methods and serviceability experience of existing types of perforated girders allowed to ascertain some common disadvantages of that kind of structural shapes: uneven stress distribution between top and bottom flange members and higher linear masses due to discrete nomenclature of proto hot rolled I-beams. Developed structural shape of girder with perforated web comprised of top and bottom flange members made from hot rolled I beams and plates connected together with discrete web plates. Top flange member is made of hot rolled I-section whereas bottom flange made of hot rolled long plate or tee section. This structural form exclude fabrication stages consisting of cutting and milling and requires no special piece of machinery. The equal stress distribution principle can be achieved in such structural shape by utilizing in flange members higher steel grades of hot rolled I sections and plates. Study asses strength of the developed structural shape of girder and compares its characteristics with those of existing structural forms of perforated beams. Conclusions. Developed structural shape of perforated girder are tangible for the building construction industry due to projected mass reduction of the girder up to 13 % relatively to existing structural forms of perforated girders with similar initial conditions alongside with simplification of manufacturing process.
Keywords.Developed structural shape of perforated girder are tangible for the building construction industry due to projected mass reduction of the girder up to 13 % relatively to existing structural forms of perforated girders with similar initial conditions alongside with simplification of manufacturing process. Keywords: perforated girder, proto I-section, flanges from hot rolled sections, web discrete plates.
For citations:Kuznetsov I.L., Penkovcev S.A., Gimranov L.R. Perforated girders with perforated of steel profiles // Izvestiya KGASU. 2018. №1(43) P.129-135.


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