Abstract
A hybrid structure is originally a composite structure in which structural steel and concrete have been compounded in its cross-section and then is expanded to a mixed structure in which a steel member and a reinforced concrete member has been joined. Moreover, various kinds of materials such as FRP recently have come into use instead of structural steel. Continuous developments of technical standards on design and execution contribute the expansion of hybrid structures. Still there are active research program to improve or to more rationalize hybrid structures. In addition to this, as a new approach, sustainability considerations will be emphasized in this paper. The author provides perspective of research and technology developments on hybrid structure from the sustainability point of view.
