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A Study on Behavioral Characteristics of Inner Reinforced CFT Column-to-Foundation Connections

내부보강형 CFT 기둥 기초 연결부의 거동특성에 대한 연구

  • Kim, Hee-Ju (Department of Civil Engineering, Inha University) ;
  • Ham, Jun-Su (Department of Civil Engineering, Inha University) ;
  • Chung, Jin-Il (Department of Civil Engineering, Inha University) ;
  • Hwang, Won-Sup (Department of Civil Engineering, Inha University)
  • 김희주 (인하대학교 토목공학과) ;
  • 함준수 (인하대학교 토목공학과) ;
  • 정진일 (인하대학교 토목공학과) ;
  • 황원섭 (인하대학교 사회인프라공학과)
  • Received : 2014.12.09
  • Accepted : 2014.12.23
  • Published : 2014.12.31

Abstract

In this study, circular sectional concrete-filled tube(CFT) column-to-foundation connections were numerically investigated in order to improve their structural details. A inner reinforced specimen with high-tension bolts and inner deformed bars was adopted from a previous experimental study to make the numerical model. The validity of the numerical method was verified through comparing the experimental results with the analysis's ones. In order to optimize design variables about the inner reinforced model, a number of numerical analyses were conducted for various variables. Finally, this study suggested the optimum variables about the reinforced circular sectional CFT column-to-foundation connections.

Keywords

References

  1. AISC Committee (2007), Steel Construction Manual, 14th ed., American Institute of Steel Construction, Chicago, Illinois, USA.
  2. Astaneh, A., Bergsma, G., Shen, J. H. (1992), "Behavior and Design of Base Plates for Gravity, Wind and Seismic Loads," Proceeding of the AISC National Steel Construction Conference
  3. Choi, J. W., Seo, S. H., Park, J. S., Joo, H. J., Yoon, S. J. (2013), "The Structural Behavior of Eccentrically Loaded Hybrid FRP-Concrete Composite Columns," Journal of the Korean Society for Advanced Composite Structures, Vol. 4, No. 4, pp. 1-8.
  4. Hognestad, E., Hanson, N. W., McHenry, D (1955), "Concrete Stress Distribution in Ultimate Stress design," ACI Journal, pp. 45-46.
  5. Kim, H. J. (2013), A Study for Structural Detail Improvement of CFT Column-Foundation Connections, Ph. D. Thesis, Department of Civil Engineering, Inha University, Incheon, Korea. (in Korean).
  6. KSCE Commitee (2008), Bridge Design Specification, Korean Society of Civil Engineers, Seoul, Korea. (in korean).
  7. Lee, D. Y., Subhash C. (2008), "God Exposed Column-Base Plate Connections Bending About Weak Axis: 1. Numerical parametric Study," International Journal of Steel Structures, pp. 11-27.
  8. Lee, D. Y., Subhash C. (2008), "God Exposed Column-Base Plate Connections Bending About Weak Axis: 2. Experimental Study," International Journal of Steel Structure, pp. 29-41.
  9. Lee, Y. G., Choi, J. W., Park, J. S., and Yoon, S. J. (2011), "Compression Strengh Test of FRP Reinforced Concrete Composite Pile," Journal of the Korean Society for Advanced Composite Structures, Vol. 2, No. 4, pp. 19-27. (in Korean). https://doi.org/10.11004/kosacs.2011.2.4.019
  10. Mander, J., Priestley, M., Park, R. (1988), "Theoretical Stress-Strain Model for Confined Concrete," Journal of Structural Engineering, Vol. 114, No. 8, pp. 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
  11. Park, J. S., Joo, H. J., Nam, J. H., and Yoon, S. J. (2010), "Structural Behavior of Flexurally Reinforced FRP-Concrete Composite Compression Member with FRP," Journal of the Korean Society for Advanced Composite Structures, Vol. 1, No. 3, pp. 10-16. (in Korean).
  12. Park, K. D., Kim, H. J., and Hwang, W. S. (2012), "Experimental and Numerical Studies on the Confined Effect of Steel Composite Circular Columns Subjected to Axial Load," International Journal of Steel Structures, pp. 253-265.
  13. Park, Y. M., Hwang, W. S., Yoon, T. Y., and Hwang, M. O. (2005), "A new Base Plate System using Deformed Reinforcing Bars for Concrete Filled Tubular Column," Steel & Composite Structures, pp. 375-394.
  14. Inha University (2013), The Development of The System of Anchor Connections Applying The High Strength Steel, POSCO, Incheon, Korea. (in Korean).