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Methodology for Designing the Steel Frames of Variable Cross-Section from Rolled I-Beams

https://doi.org/10.23947/2949-1835-2022-1-4-4-14

Abstract

Introduction. The article tackles the problem of finding the most efficient in terms of metal consumption I-shaped crosssection for creating a frame of variable section. In this paper from various options of creating the variable in length frame elements the authors study the option of creating the elements from the ordinary I-beams by diagonal slitting followed by welding as one of the most technologically advanced one. To obtain the most efficient in terms of metal consumption cross-section, it is proposed to use a monosymmetric I-beam composed of two different assortment items.

Materials and Methods. The review of scientific works related to the topic of designing structures from I-beams allowed the authors to compile a methodology for calculating the optimal section parameters. The implementation of this methodology makes it possible to draw the parameters for finding the most efficient for application cross-sections from the existing assortment of rolled I-beams.

Results. The object considered in this study is a frame of a building designed as the braced frame structure from welded single-span frames with elements of variable cross-section (code 828KM). The calculation was made in accordance with the proposed methodology. The results of the calculation show that the use of a monosymmetrical I-beam, composed of two different I-beams, gives opportunity to use the load-bearing capacity of the section to the fullest extent.

Discussion and Conclusions. In the result of implementation of the proposed methodology, it became possible to reduce the mass of an I-beam of a variable cross-section compared to the serial one used under similar loads. The result of the study allows us to conclude that the use of frames of variable section formed of I-beams of various cross-sections by diagonal slitting and subsequent welding in the construction of industrial frame buildings is highly perspective.

About the Authors

S. V. Shchutsky
Don State Technical University
Russian Federation

1, Gagarin sq., Rostov-on-Don



S. V. Skuratov
Don State Technical University
Russian Federation

1, Gagarin sq., Rostov-on-Don



A. A. Limantsev
Don State Technical University
Russian Federation

1, Gagarin sq., Rostov-on-Don



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For citations:


Shchutsky S.V., Skuratov S.V., Limantsev A.A. Methodology for Designing the Steel Frames of Variable Cross-Section from Rolled I-Beams. Modern Trends in Construction, Urban and Territorial Planning. 2022;1(4):4-14. (In Russ.) https://doi.org/10.23947/2949-1835-2022-1-4-4-14

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ISSN 2949-1835 (Online)