COLUMN AND CULUMN STRUCTURE AND MEGA COLUMN

摘要

The present invention relates to a column member, a column structure, and a mega column. The present invention is to provide the column member capable of increasing sectional rigidity by applying a section unit having a closed end face and reducing thickness of a metal plate used for a conventional column member. In the present invention, a plurality of section units extending in the longitudinal direction and forming the closed end face are connected in the circumferential direction. The section unit provides a pillar member which forms the closed end face while joining both end units of the metal plate bent in a multi-stage in the circumferential direction.