Back to Search Start Over

Steel Columns under Compression with Different Sizes of Square Hollow Cross-Sections, Lengths, and End Constraints

Authors :
Elza M. M. Fonseca
Source :
Applied Sciences, Vol 14, Iss 19, p 8668 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

This work presents several results of the stability in steel columns subject to pure compression. A square hollow cross-section with different sizes was considered. This study presents all the analytical equations that need to be used to verify the stability of each column with different lengths and boundary conditions. A finite element program was also chosen to achieve the most critical loads (Euler and buckling resistance loads) in the calculation for each element under study, using linear and nonlinear geometric and material modeling. Steel material was used for the columns, where damage due to plasticity was included, through plastic behavior with isotropic hardening. Comparing the results allows us to conclude that the use of the finite element method is an alternative methodology to be used in other types or configurations of columns, where parameterized tests can be easily implemented and to contribute to the development of a wide-ranging database. The finite element method led to an accurate solution when compared with the analytical results with a maximum deviation of 14.7%. By increasing the column length and reducing the cross-section size, the design buckling resistance of the studied columns also decreases. These studies demonstrate that the length and size of the column cross-section can meaningfully increase the structural behavior of the columns.

Details

Language :
English
ISSN :
20763417
Volume :
14
Issue :
19
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.9322702a2bc4242b250c50345553e29
Document Type :
article
Full Text :
https://doi.org/10.3390/app14198668