조립형 CFT 기둥의 콘크리트 응력-변형률 특성

Abstract

The purpose of this study is to facilitate rib welding and assembly of CFT columns. We plan to study and develop prefabricated CFT using integrated plates without welding CFT columns and ribs. CFT is characterized by the restriction of concrete, resulting in delayed buckling and increased stiffness. The restraining stress on the concrete of the CFT column was studied when steel plates that were not assembled and were not integrated. Accordingly, the stress relationship between the steel plate and concrete of the CFT column is to be derived by comparing and analyzing the stress-strain curve of concrete.