Global optimization of cold-formed steel channel sections

Tuan Tran; Long yuan Li

doi:10.1016/j.tws.2006.04.007

Global optimization of cold-formed steel channel sections

Tuan Tran
, Long yuan Li^*

^*Corresponding author for this work

Engineering Systems & Supply Chain Management

School of Engineering and Applied Science
Aston University

Research output: Contribution to journal › Article › peer-review

48 Citations (SciVal)

Abstract

Cold-formed steel sections have an important advantage which is the great flexibility of cross-sectional profiles and sizes available to structural steel designers. However, this flexibility makes the selection of the most economical section difficult for a particular situation. This paper presents a global optimization method for designing the cross-section of channel beams subjected to uniformly distributed transverse loading. The optimization of the cross-section is performed using the trust-region method (TRM) based on the failure modes of yielding strength, deflection limitation, local buckling, distortional buckling and lateral-torsional buckling. Numerical examples include the comparisons of the optimized sections obtained based on the applications of BS 5950-5 standard and the recently developed ENV-1993-1-3.

Original language	English
Pages (from-to)	399-406
Number of pages	8
Journal	Thin-Walled Structures
Volume	44
Issue number	4
DOIs	https://doi.org/10.1016/j.tws.2006.04.007
Publication status	Published - 1 Apr 2006

Keywords

Algorithms
Cold-formed
Optimization
Steel channel

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10.1016/j.tws.2006.04.007

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abstract = "Cold-formed steel sections have an important advantage which is the great flexibility of cross-sectional profiles and sizes available to structural steel designers. However, this flexibility makes the selection of the most economical section difficult for a particular situation. This paper presents a global optimization method for designing the cross-section of channel beams subjected to uniformly distributed transverse loading. The optimization of the cross-section is performed using the trust-region method (TRM) based on the failure modes of yielding strength, deflection limitation, local buckling, distortional buckling and lateral-torsional buckling. Numerical examples include the comparisons of the optimized sections obtained based on the applications of BS 5950-5 standard and the recently developed ENV-1993-1-3.",

keywords = "Algorithms, Cold-formed, Optimization, Steel channel",

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AU - Tran, Tuan

AU - Li, Long yuan

PY - 2006/4/1

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N2 - Cold-formed steel sections have an important advantage which is the great flexibility of cross-sectional profiles and sizes available to structural steel designers. However, this flexibility makes the selection of the most economical section difficult for a particular situation. This paper presents a global optimization method for designing the cross-section of channel beams subjected to uniformly distributed transverse loading. The optimization of the cross-section is performed using the trust-region method (TRM) based on the failure modes of yielding strength, deflection limitation, local buckling, distortional buckling and lateral-torsional buckling. Numerical examples include the comparisons of the optimized sections obtained based on the applications of BS 5950-5 standard and the recently developed ENV-1993-1-3.

AB - Cold-formed steel sections have an important advantage which is the great flexibility of cross-sectional profiles and sizes available to structural steel designers. However, this flexibility makes the selection of the most economical section difficult for a particular situation. This paper presents a global optimization method for designing the cross-section of channel beams subjected to uniformly distributed transverse loading. The optimization of the cross-section is performed using the trust-region method (TRM) based on the failure modes of yielding strength, deflection limitation, local buckling, distortional buckling and lateral-torsional buckling. Numerical examples include the comparisons of the optimized sections obtained based on the applications of BS 5950-5 standard and the recently developed ENV-1993-1-3.

KW - Algorithms

KW - Cold-formed

KW - Optimization

KW - Steel channel

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M3 - Article

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SP - 399

EP - 406

JO - Thin-Walled Structures

JF - Thin-Walled Structures

IS - 4

ER -

Global optimization of cold-formed steel channel sections

Abstract

Keywords

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