Dynamic stability of deep slender steel columns as part of special MRFs designed in seismic regions: finite element modeling
Dynamic stability of deep slender steel columns as part of special MRFs designed in seismic regions: finite element modeling
Deep slender steel columns are widely used for the seismic design of special moment resisting frames. However, the seismic behaviour of such columns when subjected to combined axial load and lateral deformations during an earthquake has not been investigated thoroughly. This paper discusses key issues related to the dynamic stability of deep slender steel columns subjected to combined axial load and bending. The investigation is carried out through detailed finite element analysis of a deep column, which is commonly used in modern steel construction. The effect of loading history on the cyclic response of the steel column is discussed. It is found that column axial shortening occurs with increasing axial load demands. It is also found that deep slender columns deteriorate in strength and stiffness severely due to web and flange local buckling.
Hong Kong Polytechnic University
Elkady, Ahmed
8e55de89-dff4-4f84-90ed-6af476e328a8
Lignos, Dimitrios G.
9f55ad65-7b12-4ad6-972c-5a967ec0497b
7 December 2012
Elkady, Ahmed
8e55de89-dff4-4f84-90ed-6af476e328a8
Lignos, Dimitrios G.
9f55ad65-7b12-4ad6-972c-5a967ec0497b
Elkady, Ahmed and Lignos, Dimitrios G.
(2012)
Dynamic stability of deep slender steel columns as part of special MRFs designed in seismic regions: finite element modeling.
Teng, Jinguang, Dai, Jianguo, Law, S.S., Xia, Yong and Zhu, Songye
(eds.)
In Proceedings of the first International Conference on Performance-based and Life-cycle Structural Engineering (PLSE 2012): Hong Kong, 5-7 December 2012.
Hong Kong Polytechnic University..
Record type:
Conference or Workshop Item
(Paper)
Abstract
Deep slender steel columns are widely used for the seismic design of special moment resisting frames. However, the seismic behaviour of such columns when subjected to combined axial load and lateral deformations during an earthquake has not been investigated thoroughly. This paper discusses key issues related to the dynamic stability of deep slender steel columns subjected to combined axial load and bending. The investigation is carried out through detailed finite element analysis of a deep column, which is commonly used in modern steel construction. The effect of loading history on the cyclic response of the steel column is discussed. It is found that column axial shortening occurs with increasing axial load demands. It is also found that deep slender columns deteriorate in strength and stiffness severely due to web and flange local buckling.
Text
2012_Elkady_Lignos_-_Dynamic_Stability_of_Deep_Slender_Steel_Columns_as_Part_of_Special_MRFs_Designed_in_Seismic_Regions_Finite_Element_Modeling
- Version of Record
More information
Published date: 7 December 2012
Venue - Dates:
International Conference on Performance-based and Life-cycle Structural Engineering, Hong Kong, 2012-12-05 - 2012-12-07
Identifiers
Local EPrints ID: 499226
URI: http://eprints.soton.ac.uk/id/eprint/499226
PURE UUID: 7d118a8a-21f5-4b16-b3b4-f3d929b6885e
Catalogue record
Date deposited: 12 Mar 2025 17:40
Last modified: 22 Aug 2025 02:27
Export record
Contributors
Author:
Dimitrios G. Lignos
Editor:
Jinguang Teng
Editor:
Jianguo Dai
Editor:
S.S. Law
Editor:
Yong Xia
Editor:
Songye Zhu
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
