Journal of the Korean Society for Advanced Composite Structures (복합신소재구조학회 논문집)

Korean Society for Advanced Composite Structures (한국복합신소재구조학회)
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Resistance and Flexure Behavior of Slender Welded Built-up Square CFT Column Using Internal Reinforced Steel Tube under Eccentric Loads

강관내부 보강재를 고려한 용접조립 각형 CFT 편심 장주의 내력 및 휨 거동

  • Lee, Seong-Hui (Office Equipment Examination Division, Korean Intellectural Property Office) ;
  • Kim, Young-Ho (Jiseung Consultant Co., Ltd.) ;
  • Choi, Sung-Mo (Department of Architectural Engineering, University of Seoul)
  • 이성희 (특허청 특허심사1국 사무기기심사과) ;
  • 김영호 ((주)지승컨설턴트 기술연구소) ;
  • 최성모 (서울시립대학교 건축학부)
  • Received : 2015.04.08
  • Accepted : 2015.06.11
  • Published : 2015.06.30
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Abstract

So far, square concrete filled tubular(CFT) columns have been used in a limited width thickness ratio. The reason is that local buckling occurs in steel tube easily. Once the local buckling occurs, the confinement effect of steel tube on concrete disappears. In this study, we developed welded built-up square steel tube with reinforcement which are placed at the center of the tube width acts as an anchor. 3 specimens of slender welded built-up square CFT columns and 3 specimens of slender welded built-up square steel tube columns were manufactured with parameters of width(B) of steel tube, width thickness ratio(B/t). we conducted a experimental test on the 6 specimens under eccentric load, and evaluated the structural resistance and behavior of 6 specimens.

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References

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