Methods to Improve I-Profile

Kirill Nezdanov; Igor Garkin; Igor Ovchinnikov

doi:10.4028/www.scientific.net/AMM.865.336

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 865Methods to Improve I-Profile

Methods to Improve I-Profile

Abstract:

The article discusses ways to reduce material consumption of I-rolling profile. I-beam profile is made of steel and contains shelves with parallel faces and the wall. Rational distribution of steel cross beam is provided by the fact that the flexibility of its wall which is the ratio of height wall to its thickness does not exceed the limit value of flexibility ensuring sustainability of the wall without intermediate stiffeners, and is 65 for low-alloy steel. Thickness, the height of the wall, limiting its flexibility governed by mathematical dependencies. Sectional area of the profile is distributed in the proportions 50% - wall profile, 25% - each of the shelves. The ratio of flange width to its thickness does not exceed the limit ratio, providing local resistance shelves. Of the work piece cross-sectional area A cm², the same as the prototype, rolled I-beam maximum strength, then there is an increase in the moment of resistance W_x cm³ to about 16% and stiffness by about 37,5%.

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Periodical:

Applied Mechanics and Materials (Volume 865)

Pages:

336-340

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.865.336

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Online since:

June 2017

Authors:

Kirill Nezdanov, Igor Garkin, Igor Ovchinnikov

Keywords:

Beam, Increase of Stiffness in Bending, Optimizing the Cross Section, Reduction of Material Consumption

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References

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