Proceedings Vol. 24 (2018)
ENGINEERING MECHANICS 2018
May 14 – 17, 2018, Svratka, Czech Republic
Copyright © 2018 Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague
ISBN 978-80-86246-91-8 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 681 - 684, full text
Prestressed stayed columns with two crossarms are investigated for stability and maximal loading capacity. First, analytical geometrical derivation of minimal and maximal critical loading under optimal prestressing is presented. Second, geometrically nonlinear analysis with imperfections (GNIA) using ANSYS software is employed to receive numerical values of critical and maximal loading of “nearly perfect”, ideal column. Finally, imperfect column with large initial deflections corresponding to Eurocode demand is investigated for various prestressings. In the conclusion, the comparison of analytical and numerical values is provided and comparison of the same specific column with either one or two crossarms is evaluated.
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