Strength Buckling Predictions of Cold-formed Steel Built-up Columns
Abstract
The aim of this paper is to propose a design procedure for predicting the buckling strength of built-up, cold-formed steel columns based on the two well known methods; the effective width method and the Direct Strength Method. Several design approaches, based on different elastic buckling solutions, were considered in this investigation. Traditional hand methods, without interaction effects between the different modes, and a new numerical spline finite strip method were used to predict the buckling stresses. All of the proposed methods were compared with experimental data on plain and lipped, built-up columns. Results have shown that the effective width approaches are more accurate than the Direct Strength Method. However, both methods can be investigated using more experimental data to assess a practical design method for built-up columns.
Recommended Citation
A. Megnounif et al., "Strength Buckling Predictions of Cold-formed Steel Built-up Columns," Structural Engineering and Mechanics, vol. 28, no. 4, pp. 443 - 460, Korea Institute of Science and Technolgoy Information (KISTI), Mar 2008.
The definitive version is available at https://doi.org/10.12989/sem.2008.28.4.443
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Buckling; Built-up columns; DSM; Effective width; Spline finite strip
International Standard Serial Number (ISSN)
1225-4568
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Korea Insitute of Science and Technology Information (KISTI), All rights reserved.
Publication Date
10 Mar 2008
