—The goals of this study are to understand different
buckling modes, determine the buckling mode and maximum
buckling capacity of the built-up C-channels, and evaluate the
AISI-2001 Specification. For these goals, the following was
conducted: 1) different buckling modes of cold-formed steel
columns were investigated; 2) previous research on built-up
columns and testing rigs for column buckling was reviewed;
and 3) the authors’ buckling test results of 42 cold-formed
built-up columns were examined. The study and review help
better understanding of the buckling modes and the effect of
design or testing parameters on the buckling behavior. The
results show inconsistencies in the calculated values by
AISI-2001 as compared to the maximum capacity loads
determined from the buckling tests. The orientation of the
member substantially impacts the maximum load of the
—Buckling capacity, buckling modes, built-up
sections, cold-formed steel, column, distortional buckling.
T. H.-K. Kang is with Seoul National University, Seoul 151-744 Korea
(e-mail: tkang@ snu.ac.kr).
K. A. Biggs was with the University of Oklahoma, OK 73019 USA.
C. Ramseyer is with the University of Oklahoma, OK 73019 USA.
Cite:Thomas H.-K. Kang, Kenneth A. Biggs, and Chris Ramseyer, "Thomas H.-K. Kang, Kenneth A. Biggs, and Chris Ramseyer," International Journal of Engineering and Technology vol. 5, no. 4, pp. 447-451, 2013.