SC 합성 기둥-철골 보 접합부의 내진성능에 관한 실험적 연구

Steel-concrete composite column is a recently developed composite system, in which the two opposite flanges of H-shape section are connected by welded links, and vacant space enclosed by the flanges, web and links is filled with concrete. The purposes of this paper are to suggest efficient moment-connection details for SC composite column system and to verify their seismic performance. Two types of SC composite column-steel beam connections were proposed; one for strong axis of column and the other for weak axis of column. Cyclic loading tests for two full-scaled specimens were performed according to the standard loading history of SAC(2000). Moment-connection detail for strong axis of column showed sufficient seismic performance required for SMRF(special moment resisting frame). However, connection detail for weak axis of column exhibited inferior seismic performance than that for strong axis of column, which satisfied the requirements for OMRF(ordinary moment resisting frame). Additional studies are needed to increase elastic stiffness and seismic performance of connection detail for weak axis of SC composite column.