Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Seismic Evaluation of Welded-formed square Column-Beam Connection for External Diaphragm Stress path

외다이아프램 응력경로에 따른 용접조립 각형기둥-보 접합부의 내진성능 평가

  • Kim, Sun Hee (Department of Architectural Engineering, University of Seoul) ;
  • Yom, Kyong Soo (Harmony Structural Engineering) ;
  • Choi, Sung Mo (Department of Architectural Engineering, University of Seoul)
  • 김선희 (서울시립대학교, 건축학부) ;
  • 염경수 ((주)하모니구조엔지니어링) ;
  • 최성모 (서울시립대학교, 건축학부)
  • Received : 2013.06.06
  • Accepted : 2014.07.04
  • Published : 2014.08.27
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Abstract

Concrete filled tubular structure should be installed diaphragms for moment connection. However internal and through diaphragm should be special welded when connected to column tube. The other hand, that has become increase of stress concentration and extend of construction error. Therefore, In this study the seismic performance of beam to column connections with External Diaphragms and implement cycle loading experiment. we had evaluated seismic performance with mentioned experiment which is concrete filled or not, variable shapes, to be welded or not of diaphragm. Also, formula of strength of external diaphragm was analyzed and looked into adequacy with regard to formula of tension strength.

콘크리트 충전강관 기둥에 모멘트 접합부를 만들기 위해서는 추가적인 다이아프램 설치가 필요하다. 그 중 내측 다이아프램과 관통 다이아프램을 용접하기 위해서는 기둥강관에 특수한 용접기술이 필요하다. 하지만 이런 기술은 제작업체의 특수장비 보유에 따라서 제작성 저하와 생산단가 상승 유도 등의 문제를 갖고 있다. 따라서 본 연구에서는 외다이아프램을 갖는 실대형 기둥-보 접합부를 제작하였고, 반복가력 실험을 수행하였다. 다이아프램의 용접 유무와 콘크리트 충전 여부, 형상에 따른 총 6개의 T자형 접합부 실험을 통해 내진성능을 평가하였다. 또한 외다이아프램 내력식에 대한 분석이 이뤄졌다. 본 실험에서 나온 결과를 인장내력식의 적절성을 검토 하였다.

Keywords

References

  1. 김선희, 방중석, 박영욱, 최성모(2012) 합성반강접 CFT기둥-보 접합부 구조의 경제성 평가, 한국강구조학회논문집, 한국강구조학회, 제24권, 제1호 pp.109-117. (Kim, S.H., Bang, J.S, Park, Y.W., and Choi, S.M. (2012) The Structural Economical Efficiency Evaluation of Partially Restrained Composite CFT Column-to -Beam Connection. Journal of Korean Society of Steel Construction, KSSC, Vol.24, No.1, pp.109-117 (in Korean)). https://doi.org/10.7781/kjoss.2012.24.1.109
  2. 박민수, 김희동, 이명재(2011) 충전성을 개선한 원형 CFT 구조의 기둥-보 접합부 구조적 거동, 한국강구조학회논문집, 한국강구조학회, 제23권, 제6호, pp.737-745. (Park, M.S., Kim, H.D., and Lee, M.J. (2011) Structural Behavior of Beam-to-Column Connection of Circular CFT Structural Improving Concrete Filling. Journal of Korean Society of Steel Construction, KSSC, Vol.23, No.6 pp.737-745 (in Korean)).
  3. 김선희, 염경수, 최성모(2013) 내부 앵커형 콘크리트 충전기둥의 내력 및 변형 능력에 관한 연구, 한국강구조학회논문집, 한국강구조학회, 제25권, 제4호, pp.347-357. (Kim, S.H., Kim, S.H., Yom, K.S., and Choi, S.M. (2013) A Study on the Load Carrying Capacity and Deformation capacity of the Internal Anchors Welded Cold Formed Concrete Filled Columns, Journal of Korean Society of Steel Construction, KSSC, Vol.25, No.4 pp.347-357 (in Korean)).
  4. 이성희, 정헌모, 김대중, 김진호 최성모(2008) 용접조립 각형CFT기둥-보 외다이아프램 접합부의 구조특성, 한국강구조학회논문집, 한국강구조학회, 제20권, 제6호, pp.711-722. (Lee, S.H., Jung, H.M., Kim, D.J., Kim, J.H., and Choi, S.M. (2008) Structural Characteristic Welded Built up Square CFT Column to Beam Connection with External Diaphragm. Journal of Korean Society of Steel Construction, KSSC, Vol.20, No.6, pp.711-722 (in Korean)).
  5. 日本建築學會(1997) "コンクリト充鋼管構造設計施 工指針" (AIJ (1997) Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures, Architecture Institute of Japan, Japan (in Japanese)).
  6. 日本建築學會(1994) "鋼管構造の擧動と設計に關 する最 近の究". (AIJ (1994) Recent Research for Behavior and Design of Tubular Structures, Architecture Institute of Japan, Japan (in Japanese)).
  7. Matsui, C. (1985) Strength and Behavior of Frames with Concrete Filled Square Steel Tubular Columns Under Earthquake Loading, International Specialty Conference on Concrete Filled Steel Tubular Structural, pp.104-111.
  8. 박제한(2008) 용접조립 각형 CFT기둥-보 외다이아프램 접합부의 구조특성에 관한연구, 서울시립대 건축공학과 석사학위논문. (Park, J.H. (2008) A Study on Structural Characteristics of Welded Built-up Square CFT Column to Beam Connection with External Diaphragm, University of Seoul M.S)
  9. AISC (2010) Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction Ins.
  10. KS B 0802 (2003) 금속재료 인장시험벙법, 산업자원부 기술표준원. (KS B 0802 (2003) Method of Tensile Test for Metallic Materials, Korea Agency for Technology and Standards)
  11. 오헌근, 김선희, 최성모(2013) 상하이형 다이아프램으로 보강된 2심 냉간성형 각형 CFT기둥-보 접합부의 실험적 연구, 한국강구조학회논문집, 한국강구조학회, 제25권, 제1호, pp.35-45. (Oh, H.K., Kim, S.H., and Choi, S.M. (2013) Experimental Study on Two-Seam Cold Formed Square CFT Column to Beam Connections with Asymmetric Diaphragms, Journal of Korean Society of Steel Construction, Vol.25, No.1 pp.35-45(in Korean)). https://doi.org/10.7781/kjoss.2013.25.1.035
  12. Choi, S.M., Sang, Y.Y., Kim, D.K., Kim, Y.S., and Kim, J.H. (2006) Experimental Study on Seismic Performance of Concrete Filled Tubular Square Column-to-Beam Connections with Combined Cross Diaphragm, Steel & Composite Structure, Vol.6, No.4, pp.303-317. https://doi.org/10.12989/scs.2006.6.4.303
  13. Fuijimoto, T., Mukai, A., Nishiyama, I., and Sakino, K. (2004) Behavior of Eccentrically Loaded Concrete-Filled Steel Tubular Columns, Journal of Structural Engineering, Vol.130, No.2, pp.203-12. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(203)
  14. Gourley, B.C. and Hajjar, J.F. (1994) Cyclic Nonlinear Analysis of Three-Dimensional Concrete-Filled Steel tube Beam-Columns and Composite Frames, Structural Engineering Report ST-94-3, University of Minnesota, MN.
  15. Teh, L.H. and Rasmussen, K.J.R. (2007) Strength of Arc-Welded T-Joints Between Equal Width Cold-Formed RHS, Journal of Constructional Steel Research, Vol.63, No.4, pp.571-579. https://doi.org/10.1016/j.jcsr.2006.06.021
  16. Bradford, M.A., Loh, H.Y., and Uy, B. (2002) Slenderness Limits for Filled Circular Steel Tubes, Journal of Constructional Steel Research, pp.243-252.
  17. Mursi, M and Uy, B. (2004), Strength of Slender Concrete Filled High Strength Steel Box Columns, Journal of Constructional Steel Research, Vol.60, No.12, pp. 1825-1848. https://doi.org/10.1016/j.jcsr.2004.05.002

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