ㄱ형강과 강판을 조합한 합성기둥의 내력평가실험

There are SC, SRC, CFT in domestic composite column. Among them, can improve load resistance ability because SRC excels fire resistance efficiency and concrete constraints buckling of steel column. But, receive axial force and moment at the same time because concrete is enclosing steel an early collapse are worried. However, can prevent early collapse by binding effect and identify 4 angles through steel plate by arranging L-section steel on concrete corner. Also, flexural rigidity increase by steel moment arm's length increase. In this study, a combination of steel plates and beams made of five specimens. The variable is stirrup gap (177, 333), eccemtric load ratio (e:0, 0.25, 0.5B) and grasped structure performance of column through 1000 tons UTM.