DOI QR코드

DOI QR Code

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

Abstract

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.

Keywords

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

Acknowledgement

Supported by : 중소기업청

References

  1. European 4 (1992) Design of Composite Structures, Part1.1: General Rules of Building, ENV 1994 -1-1, CEN, Brussel.
  2. KS B 0801 (2005) 금속재료 인장시험편, 산업자원부 기술표준원. KS B 0801 (2007) Test Pieces for Tensile test for Metallic Materials, Korea Agency for Technology and Standards (in Korean).
  3. 김창수, 박홍근, 최인락, 정경수, 김진호 (2010) 800강재 및 100MPa 콘크리트를 적용한 매입형 합성기둥의 구조성능, 한국강구조학회논문집, 한국강구조학회, 제22권, 제 5호, pp.497-509. Kim, C.S., Park, H.K., Choi, I.R., Chung, K.S., and Kim, J.H. (2010) Strength performance on concrete-encased steel column using 800MPa steel and 100MPa concrete, Journal of Korean Society of Steel Construction, KSSC, Vol. 22, No. 5, pp. 497-509 (in Korean).
  4. 최익락, 정경수 김진호 홍건호 (2012) 이종강종을 사용한 고강도 CFT합성부재의 구조성능, 한국강구조학회논문집, 한국강구조학회, 제24권, 제6호, pp.711-723. Choi, I.R., Chung, K.S., Kim, J.H., and Hong, G.H. (2012) Strength performance of high-strength concrete filled steel tube steel columns using different strength steels. Journal of Korean Society of Steel Construction, KSSC, Vol. 24, No. 6, pp.711-723 (in Korean).
  5. 김선희, 최영환 최성모 (2012) HSB600원형 강관기둥의 거동에 대한 실험적 연구, 한국강구조학회논문집, 한국강구조학회, 제24권, 제6호 pp.743-751. Kim, S.H., Choi, Y.H., and Choi, S.M. (2012) Experimental study on the behavior of circular steel tube columns using HSB600 steel, Journal of Korean Society of Steel Construction, KSSC, Vol. 24, No. 6, pp.743-751 (in Korean).
  6. O'Shea, M.D. and Bridge, R.Q. (1997) Behaviour of thin-walled box sections with lateral restraint. Department of Civil Engineering Research Report No. R739, The University of Sydney, Sydney, Australia.
  7. Ge, H. and Usami, T. (1992) Strength of Concrete- Filled Thin-Walled Steel Box Columns : Experiment, Journal of Structural Engineering, Vol. 118, No. 11, pp.3036-3053. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:11(3036)
  8. Huang, C.S., Cheung, L.L., Yeh, Y.-K., Yeh, C.K., Lu, L.Y., and Liu, G.-Y. (1998) Review of researches on concrete-filled steel tubes. Rep. of National Center for Research on Earthquake Engineering, No.NCREE-98-012, Taipei, Taiwan (in Chinese).
  9. Zhong, T., Lin, H.H., and Zhibin, W. (2005), Experimental Behaviour of stiffened concrete filled thin walled hollow steel structural (HSS) stub Columns, Journal of Constructional Steel Research, Vol. 61, No 7, pp.962-983. https://doi.org/10.1016/j.jcsr.2004.12.003
  10. Cai, J. and He, Z.Q. (2006) Axial load behavior of square CFT stub column with binding bars. Journal of Constructional Steel Research, Vol. 62, pp.472-483. https://doi.org/10.1016/j.jcsr.2005.09.010
  11. Mursi, M. and B. Uy. (2003) Strength of concrete filled steel box columns incorporating interaction buckling, Vol. 129, No. 5, pp.626-639. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:5(626)
  12. Bahrami, A, Badaruzzaman, W.H.W., and Osman, S.A. (2011) Nonlinear analysis of concrete-filled steel composite columns subjected to axial loading, Structural Engineering and mechanics, Vol. 39, No. 3, pp.383-398. https://doi.org/10.12989/sem.2011.39.3.383
  13. Lee, S.H., Kim, S.H., Kim, Y.H., Zhong, T., and Choi, S.M. (2011) Water pressure test and analysis for concrete steel square columns, Journal of Constructional Steel Research, Vol. 67, No. 7, pp.1065 -1077. https://doi.org/10.1016/j.jcsr.2011.02.012
  14. 대한건축학회 (2009) 건축구조 설계 기준(KBC-2009). AIK (2009) Korea Building Code and Commentary (KBC-2009), Architectural Institute of Korea, Korea (in Korean).
  15. AISC (2005) Steel Construction Manual, American Institute of Steel Construction Ins.

Cited by

  1. The Performance Evaluation of Beam to CFT Column Connection Stiffened by Ring Diaphragm vol.9, pp.3, 2018, https://doi.org/10.11004/kosacs.2018.9.3.106