Load carrying capacity of Structural Composite Hybrid System (Green Frame)

철골 프리캐스트 콘크리트 합성보 성능 분석 연구

  • Received : 2009.12.14
  • Accepted : 2010.02.19
  • Published : 2010.02.28

Abstract

An experimental investigation of composite beams composed of wide flange steel and precast concrete is presented. The bottom flange of the steel section is encased in precast concrete. The composite beams tested in this study were designed to reduce the depth of the slab and beam. The slabs are constructed on top of the edges of the Structural Composite Hybrid System, instead of on top of the steel flange, decreasing the depth of the beams. When concrete is cast on the metal deck plate located on the edges of the precast concrete, the weight of the concrete slabs and other construction loads must be supported by the contacts between the steel and the precast concrete. This interface must not exhibit bearing failures, shear failures, and failures caused by torque due to the loading of the precast concrete. When the contact area between the concrete and the bottom flange of the steel beam is small, these failures of the concrete are likely and must be prevented. The premature failure of precast concrete must not also be present when the weight of the concrete slabs and other construction loads is loaded. This paper presents a load carrying capacity of Structural Composite Hybrid System in order to observe the failure mode. The symmetrically distributed loading that caused the failure of the composite beam was found. The paper also provides design recommendations of such type of composite structure.

Acknowledgement

Supported by : 한국연구재단

References

  1. 허병욱, 배규웅, 문태섭, 매입형 합성보의 휨성능 평가, 한국강구조학회논문집, 16권 5호, pp587-598, 2004
  2. 홍원기, 김진민, 이경훈, 박선치, 김점한, 내화피복이 생략된 합성보의 구조설계지침 제정을 위한 고찰, 한국생태환경건축학회, 8권 1호, pp93-98, 2008
  3. 홍원기, 김진민, 김선국, 김형근, 윤기준, 공동주택 장수명화를 위해 MHS 공법이 적용된 골조공법 개선방안, 한국건축시공학회논문집, 8권 6호, pp107-116, 2008
  4. V.A. Oven, I.W. Burgess, R.J. Plank, and A.A. Abdul Wali, 'An analytical model for the analysis of composite beams with partial interaction', Computers and Structures, Vol.62, No.8, pp493-504, 1997 https://doi.org/10.1016/S0045-7949(97)80001-2
  5. W.K. Hong, S.C. Park, J.M. Kim, S.G. Lee, S.I. Kim, K.J. Yoon and H.C. Lee, 'Composite Beam Composed of Steel and Pre-cast Concrete.(Modularized Hybrid System, MHS) Part I: Experimental Investigation', Structural Design of Tall and Special Buildings, In Press, Published Online, DOI:10.1002/ tal.485
  6. W.K. Hong, S.C. Park, H.C. Lee, J.M. Kim, S.I. Kim, S.G. Lee, H.S. Kim and K.J. Yoon, 'Composite Beam Composed of Steel and Pre-cast Concrete.(Modularized Hybrid System, MHS) Part III: Application for a 19 story Building', Structural Design of Tall and Special Buildings, In Press, Published Online, DOI:10.1002/ tal.507 https://doi.org/10.1002/tal.507
  7. W.K. Hong, J.M. Kim, S.C. Park, S.G. Lee, S.I. Kim, K.J. Yoon, H.C. Kim, and J.T. Kim, 'A new apartment construction technology with effective CO2 emission reduction capabilities', Energy - The International Journal, In Press, Published Online, DOI:10.1016/ j.energy.2009.05.036 https://doi.org/10.1016/j.energy.2009.05.036
  8. W.K. Hong, S.I. Kim, S.C. Park, J.M, Kim, S.G. Lee, K.J. Yoon and S.K. Kim, 'Composite Beam Composed of Steel and Pre-cast Concrete.(Modularized Hybrid System, MHS) Part IV: Application for Multi-Residential Housing', Structural Design of Tall and Special Buildings, In Press, Published Online, DOI:10.1002/ tal.506 https://doi.org/10.1002/tal.506
  9. W.K. Hong, J.M. Kim, S.C. Park, S.I. Kim, S.G. Lee, H.C. Lee and K.J. Yoon, 'Composite Beam Composed of Steel and Pre-cast Concrete.(Modularized Hybrid System, MHS) Part II: Analytical Investigation', Structural Design of Tall and Special Buildings, Vol.18, No.8, pp891-905, 2009.12 https://doi.org/10.1002/tal.484
  10. C.C. Weng, S.I. Yen, and M.H. Jiang, 'Experimental study on shear splitting failure of full-scale composite concrete encased steel beams', Journal of Structural Engineering, ASCE, Vol.128, No.9, pp1186–1194, 2002 https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1186)
  11. 홍원기, 박선치, 이경훈, 김점한, 이호찬, 황윤하, 친환경 층고 절감형 합성보의 시공 Process 및 시공사례, 한국생태환경건축학회 논문집, 7권 6호, pp107-112, 2007. 12
  12. 건축구조설계기준[Korean Buildings Code-Structural], 대한건축학회, 2005