2016 Volume 23 Issue 90 Pages 90_51-90_64
We conducted loading tests in the range of large deformation for RHS columns in order to investigate restoring force characteristics with strength deterioration due to local buckling. Manufacturing processes, steel grades, width-thickness ratios and et al are employed as parameters. The major findings obtained in this study are as follows:
(1) Cold-formed columns deteriorate more significantly than weld-assembled columns.
(2) Proposed model for restoring force characteristics show good agreements with test results.