<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A parametric optimization problem of cross-sectional sizes for cold-formed steel lipped channel structural members subjected to axial compression has been considered by the paper. An optimization problem is formulated to define optimum cross-sectional sizes of cold-formed structural member taking into account post-buckling behavior and structural requirements when stripe width, profile thickness and profile type are constant and specified in advance. Maximization of the load-carrying capacity of the cold-formed structural member has been assumed as purpose function. As optimization results cold-formed steel lipped channels with optimum dimensions have been obtained. Steel lipped channels structural members with the optimum cross-sectional dimensions have higher load-carrying capacities at the same material consumption (stripe width) comparing with the ones proposed by the manufacturer when the material consumption.</p>
</abstract>

A parametric optimization problem of cross-sectional sizes for cold-formed steel lipped channel structural members subjected to axial compression has been considered by the paper. An optimization problem is formulated to define optimum cross-sectional sizes of cold-formed structural member taking into account post-buckling behavior and structural requirements when stripe width, profile thickness and profile type are constant and specified in advance. Maximization of the load-carrying capacity of the cold-formed structural member has been assumed as purpose function. As optimization results cold-formed steel lipped channels with optimum dimensions have been obtained. Steel lipped channels structural members with the optimum cross-sectional dimensions have higher load-carrying capacities at the same material consumption (stripe width) comparing with the ones proposed by the manufacturer when the material consumption.

Cross-Section Size Optimization of Cold-Formed Steel Lipped Channel Structural Members Subjected to Axial Compression

Chair of Steel and Timber Structures, Department of Civil Engineering

Kyiv National University of Civil Engineering and Architecture

Department of Building Production, Institute of Civil Engineering and Building Systems

Civil and Environmental Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

A parametric optimization problem of cross-sectional sizes for cold-formed steel lipped channel structural members subjected to axial compression has been...

Cross-Section Size Optimization of Cold-Formed Steel Lipped Channel Structural Members Subjected to Axial Compression

Published Online: Dec 14, 2022

Page range: 472 - 481

DOI: https://doi.org/10.2478/cee-2022-0044

Keywords
Cold-formed steel, Buckling resistance, Torsional-flexural buckling, Parametric optimization, Gradient-based methods

© 2022 Vitalina Yurchenko et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Cross-Section Size Optimization of Cold-Formed Steel Lipped Channel Structural Members Subjected to Axial Compression

Published Online: Dec 14, 2022

Page range: 472 - 481

DOI: https://doi.org/10.2478/cee-2022-0044

KeywordsCold-formed steel, Buckling resistance, Torsional-flexural buckling, Parametric optimization, Gradient-based methods

© 2022 Vitalina Yurchenko et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Cold-formed steel, Buckling resistance, Torsional-flexural buckling, Parametric optimization, Gradient-based methods