In the following article, the recent trend in studies of steel-concrete composite structures is briefly introduced. In addition, a study is also introduced of a new steel-concrete structure, for which we are promoting the development of studies. Current State of Studies of Steel-Concrete Composite Structures The typical steel-concrete composite structures in common use in Japan are of three structures: steel and reinforced concrete (SRC) structures, concrete-filled steel tube (CFT) structures and reinforced concrete column-steel beam (RC+S) mixed structures (Fig. 1).
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