| Abstract: | In the present paper, results of a numerical study on cyclic behavior of thin-walled steel structures are presented. Analyses are conducted on steel plates with or without stiffeners, steel stub columns of pipe-sections, and steel cantilever columns of box or pipe sections. To trace with good accuracy the inelastic cyclic behavior of steel, a modified two-surface model developed at Nagoya University is employed for material nonlinearity. Discussions of the results are concerned with the cyclic behavior, strength and ductility of the structures. Especially, a series of proposed formulas are given to obtain the strength and ductility of various types of structures, and it is expected that the formulas are useful to researchers and practical engineers. |
