A Study on the Load Carrying Capacity and Deformation Capacity of the Internal Anchors Welded Cold Formed Concrete Filled Columns

내부앵커형 콘크리트 충전 기둥의 내력 및 변형능력에 관한 연구

  • Kim, Sun Hee (Department of Architectural Engineering, University of Seoul) ;
  • Yom, Kong Soo (Harmony Structural Engineering) ;
  • Choi, Sung Mo (Department of Architectural Engineering, University of Seoul)
  • 김선희 (서울시립대학교, 건축공학부) ;
  • 염경수 ((주)하모니구조엔지니어링) ;
  • 최성모 (서울시립대학교, 건축공학부)
  • Received : 2013.03.04
  • Accepted : 2013.07.23
  • Published : 2013.08.27


Recently, In recognition of outstanding structural performance the use of Concrete Filled steel Tube(CFT) columns has been increased. Research is ongoing that effective use of cross-sectional because steel strength development and rising prices. In this Lab, suggests new shape by Thin steel plates bent to be L-channel welded to form square steel tube to maximize efficiency of the cross section. In addition, since the rib placed at the center of the tube width acts as an anchor; higher load capacity of buckling is acceptable. we have developed New shape welded built-up square tube for broader usability which were bent to be L-shaped and thin Plate each unit member were welded. In order to apply the new shape built-up square columns, we predicted structure behavior, stress distribution with parameter Width thickness ratio. The experimental results presented in standards and even exceed the b/t of the rib anchors installed in the role due to exert enough strength and deformation to improve performance was favorable.


concrete filled steel tube column;internal anchors;rib;axial capacity;width of thickness


Supported by : 중소기업청


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