Lateral-torsional buckling of beams of monosymmetrical cross-sections loaded perpendicularly to the axis of symmetry: Theoretical analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU124702" target="_blank" >RIV/00216305:26110/17:PU124702 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/cepa.149" target="_blank" >http://dx.doi.org/10.1002/cepa.149</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cepa.149" target="_blank" >10.1002/cepa.149</a>

Result language

angličtina

Original language name

Lateral-torsional buckling of beams of monosymmetrical cross-sections loaded perpendicularly to the axis of symmetry: Theoretical analysis

Original language description

Determination of the critical moment is a crucial step of the process of assessment of the buckling resistance of a metal beam with no intermediate restraints between supports. The critical moment of an ideal beam depends, among others, on support conditions and variation of the bending moment along the span of the beam. It can be found as a solution of the eigenvalue problem of differential equations of bending. This complex procedure can generally provide a formula for the calculation of the critical moment with certain coefficients varying depending on the variation of the bending moment along the span and support conditions of the beam. The formula for the critical moment and numerical values of the coefficients taking into account the type of supports and variation of the bending moment for some common cases can be found in literature. The paper focuses on process of derivation of the formula for calculation of the elastic critical moment of beams of double symmetrical and monosymmetrical cross-sections (channels) loaded perpendicularly to the plane of symmetry. Based on classical Vlasov’s theory and variational method, a formula for the elastic critical moment of beams of double symmetrical cross-sections and channels loaded perpendicularly to the plane of symmetry and coefficients for not only simple cases of loads but also selected special cases are derived using mathematical methods and presented in the paper. Numerical values of the above mentioned coefficients are summarized in tables and charts.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ce/papers

ISSN

2509-7075

e-ISSN

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Volume of the periodical

1

Issue of the periodical within the volume

2-3

Country of publishing house

DE - GERMANY

Number of pages

10

Pages from-to

1086-1095

UT code for WoS article

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EID of the result in the Scopus database

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