TY - JOUR
T1 - Global optimization of cold-formed steel channel sections
AU - Tran, Tuan
AU - Li, Long yuan
PY - 2006/4/1
Y1 - 2006/4/1
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
UR - http://www.scopus.com/inward/record.url?scp=33745854475&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0263823106000553?via%3Dihub
U2 - 10.1016/j.tws.2006.04.007
DO - 10.1016/j.tws.2006.04.007
M3 - Article
AN - SCOPUS:33745854475
SN - 0263-8231
VL - 44
SP - 399
EP - 406
JO - Thin-Walled Structures
JF - Thin-Walled Structures
IS - 4
ER -