Influence of Corner Rounding on Local Buckling Strength in Square Sectioned Steel Column

사각단면 강기둥 모서리 곡률의 국부좌굴 강도에 대한 영향 평가

Generally, the buckling of thin-walled structures has studied for rectangular sections or circular sections. Rectangular sections have small stiffness and circular sections have large stiffness when they are compared with rectangular sections for local buckling. But both of them have similar stiffness to column buckling. Therefore in this paper, we are going to analyze the local buckling for the box section with rounded comer and compare with rectangular section. Also we confirm that the rounded comer section has larger local buckling strength than rectangular section.