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Estimated closeness of optimum piecewise constant section width in I-rods with stability or first eigen-frequency limits to the predicted minimum material consumption with regard to strength requirements

https://doi.org/10.31675/1607-1859-2020-22-4-114-125

Abstract

The previous research described estimated closeness of optimum piecewise constant section width in I-rods with stability or first eigen-frequency limits to the predicted minimum material consumption with regard to strength requirements in continuous change in variable rod parameters. It is however known that in construction, rods are generally designed with piecewise constant change in the section parameters. Besides, in another work, the criterion was formulated for assessment of optimum solutions of piecewise constant sections of I-rods with stability or the first eigen-frequency limits, without considering the strength requirements. This paper focuses on a more general problem of estimated closeness of optimum piecewise constant section width in I-rods with stability or first eigen-frequency limits to the predicted minimum material consumption with regard to strength requirements.

About the Authors

L. S. Lyakhovich
Tomsk State University of Architecture and Building
Russian Federation

Leonid S. Lyakhovich, DSc, Professor, Academician RAACS

2, Solyanaya Sq., 634003, Tomsk



P. A. Akimov
Tomsk State University of Architecture and Building; The National Research Moscow State University of Civil Engineering; Russian Academy of Architecture and Construction Sciences
Russian Federation

Pavel A. Akimov, DSc, Professor, Academician RAACS; 

2, Solyanaya Sq., 634003, Tomsk, Russia

26, Yaroslavskoe Road, 129337, Moscow, Russia



B. A. Tukhfatullin
Tomsk State University of Architecture and Building
Russian Federation

Boris A. Tukhfatullin, PhD, A/Professor

2, Solyanaya Sq., 634003, Tomsk, Russia



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For citations:


Lyakhovich L.S., Akimov P.A., Tukhfatullin B.A. Estimated closeness of optimum piecewise constant section width in I-rods with stability or first eigen-frequency limits to the predicted minimum material consumption with regard to strength requirements. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2020;22(4):114-125. (In Russ.) https://doi.org/10.31675/1607-1859-2020-22-4-114-125

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ISSN 1607-1859 (Print)
ISSN 2310-0044 (Online)