Engineering Mechanics

International Conference

Proceedings Vol. 18 (2012)


ENGINEERING MECHANICS 2012

18th INTERNATIONAL CONFERENCE
May 14 – 17, 2012, Svratka, Czech Republic
;
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2012 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-86246-39-0 (printed, Extended Abstracts)
ISBN 978-80-86246-40-6 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

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LTB resistance of beams influenced by plastic reserve or local buckling
Y. Koleková, I. Baláž
pages 639 - 655, full text

The results of original procedure concerning calculation of the values of the critical moments Mcr using approximate formulae convenient for educational and standardization purposes are presented. The authors formulae are today used in many international and national standardization documents (e.g. in several Eurocodes and their National Annexes), in engineering practice of 32 countries and in educational process at many Universities (e.g. in EPU de São Paulo, EPFL Lausanne, etc.). New C1 values are presented for beams under combination of uniform loading and unequal end moments. Development of useful modification of Eurocode formulae for lateral torsional buckling resistance Mb,Rd, which enable to show very clearly the influence of plastic resistance and local buckling on LTB resistance of metal (steel, stainless steel, aluminium) and timber beams calculated by any of four Eurocode methods.


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