Plastic Deformation Capacity of Cold-formed Circular Steel Tube Columns Subjected to Cyclic Loading

摘要

The main object of this study is to clarify the plastic deformation capacity of circular steel tube columns, the strength of which is steadily reduced due to the accumulation of local buckling deformation caused by cyclic loading. For that purpose, numerical analysis was conducted on cold-formed circular steel tube columns subjected to cyclic loading with specified amplitudes under specified axial force conditions.