Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Proposed Estimation Formulas for minimum Embedded-length of Connection Embedded-type Foundation Unit Modular System

유닛 모듈러 매입형 기초 접합부의 최소 매입깊이 산정식 제안

  • Received : 2014.03.14
  • Accepted : 2014.09.03
  • Published : 2014.11.30
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Abstract

Modular unit structure system has been used increasingly for mid-rise buildings where repetitive units are required. By assembling the pre-made modular unit structures, a building can be easily constructed. The assembled building must behave as one single structure to effectively transfer the forces and moments developed by gravity and lateral loads. For this, individual modular unit structure has to be properly connected to each other. Therefore, evaluation of the connection behavior of modular unit structure system is crucial. This study proposed the embedded steel column-to foundation connection for modular unit structure system and evaluated the behavior of the proposed connection. A series of experiments was performed to investigate the effect of embedment depth of the column, the shape of the end plate, and the shear studs in the embedded region of the column on the connection behavior. Further, advanced three dimensional nonlinear finite element analyses were conducted for each experiment specimen to demonstrate the failure mechanism of the proposed connection in depth. Finally, a design equation for the proposed connection was suggested.

Keywords

Acknowledgement

Grant : 탈현장 초고속 주택 구조안전성 기술 개발

Supported by : 한국건설기술연구원

References

  1. Annan CD, Youssef MA, Naggar MH., Experimental evaluation of the seismic performance of modular steel-braced frames, Eng Struct, V.31, 2009.
  2. Lawson RM, Ogden RG. Bergin R., Application of Modular Construction in High-Rise Buildings, J Archit Eng ASCE, V.18. No.2, 2012.
  3. Lawson RM, Richards J., Modular design for highrise buildings, Proc Inst Civ Eng Struct Build, V.163, 2010.
  4. Lehman DE, Roeder CW., Foundation connections for circular concrete-filled tubes, J Construct Steel Res, V.78, 2012.
  5. Moon J, Lehman DE, Roeder CW, Lee H-E., Evaluation of embedded concrete-filled tube (CFT) column-to-foundation connections. Eng Struct, V.56, 2013.
  6. ABAQUS, ABAQUS analysis user's manual version 6.9-2, Dassault Systemes Simulia Corp, Providence, RI, USA, 2009.
  7. Baltay P, Gjelsvik A. Coefficient of friction for steel on concrete at high normal stress, J Mater Civ Eng ASCE , V.2, No.1, 1990.
  8. Moon J, Lehman DE, Roeder CW, Lee H-E, Analytical modeling of bending of circular concrete-filled steel tubes, Eng Struct, V.42, 2012.
  9. Saenz LP., Discussion of 'Equation for the stress-strain curve of concrete' by P. Desayi, and S. Krishnan., ACI J, V.61, 1964.
  10. American Concrete Institute (ACI), Building code requirements for structural concrete, ACI 318-11, Farmington Hills, Michigan, 2011.
  11. Hsu TTC, Mo Y-L., Unified theory of concrete structures, 2nd edition, John Wiley & Sons, Inc., 2010.
  12. Lee J, Fenves GL., Plastic-damage model for cyclic loading of concrete structures, Journal of Engineering Mechanics ASCE, V.124, No.8, 1998.