ABSTRACT

M. Dundu & J. Tumkou University of Johannesburg, Johannesburg, South Africa

ABSTRACT: Circular hollow steel sections are normally specified in truss and dome structures to take advantage of their efficiency in compression and the ease with which they can be curved to match the various radii of the different domes. However, it is not easy to connect these members together or to other members. In order to connect them together or to other members, the ends are usually squashed or flattened. Although the process of flattening does not reduce the area of the section, it does reduce the flexural stiffness of the section. The aim of this paper is to study the compressive behaviour of circular hollow members with flattened edges.