Abstract
The research and practice of concrete-filled steel tubular members in Lithuania are described. Attention is especially paid to more effective super-thin and thin-walled concrete-filled steel tubes incorporating hollow concrete cores formed by centrifugal force. The fundamentals of behaviour and structural analysis with substantiation of principles of the design methods for such members as tubular columns, beam-columns, beams and trusses, as well as for their connections are presented. It is shown that, because of loading, an interaction occurs between these two traditional materials—steel and concrete—located in the external shell and internal core, and that this also significantly increases the resistance of hollow structural members. Attention is paid to projects that utilize hollow concrete-filled steel tubular structures, incorporated in various buildings, which prove their great technical and economical efficiency, safety and reliability.
Published Version
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