Cyclic Behavior of SHS Columns Subjected to Small Amplitude Loading Part 2 Investigation of strength deterioration behavior due to local buckling

摘要

Higher stability and better cumulative plastic deformationcapacity can be obtained for columns under small amplitudeloading. The axial force ratio, width-to-thickness ratio andloading history have great effect on the deterioration behavior ofthe columns. The trend for the flange plate deformation indicatesthe strength deterioration process for the specimens.