Numerical study of buckling resistance of steel I-section members under two directional bending
Marian Giżejowski , Zbigniew Stachura , Radosław Szczerba , Marcin Daniel Gajewski
AbstractPresent approach to design of steel I-section beam-columns distinguish two design situations of elements subjected to two directional bending about their principal major axis and compression in which they are sensitive to: a) the flexural failure (second order spatial bending and compression) or b) the flexural-torsional failure (second order spatial bending, warping torsion and compression). This paper refers to the latter case of member failure and aims in the development of finite element numerical modeling technique that would be useful for the verification of analytical buckling resistance criteria of imperfect elements subjected to different loading conditions. Most of recent research investigations have been devoted to beam-columns bent about major axis and subjected to flexural-torsional buckling. Buckling of I-section beams under two directional bending has been rather scarcely considered, hence it is dealt with in this paper. Impact of the in-plane moment gradient on the member buckling resistance is assessed as well as concluding remarks in relation to analytical formulations presented in EN 1993-1-1:2005 are drawn.
|Publication size in sheets||0.3|
|Book||Zingoni A. (eds.): Sixth International Conferences on Structural Engineering, Mechanics and Computation, 2016, Cape Town, Taylor & Francis Group, ISBN 978-1-315-64164-5, [978-138-02946-0]|
|Keywords in English||beam-columns|
|Publication indicators||= 2; = 4.0|
|Citation count*||4 (2020-09-20)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.