Cover
Vol. 12 No. 1 (2012)

Published: July 31, 2012

Pages: 46-59

Original Article

Structural Behavior of Concrete Filled Aluminum Tubular Columns

Kadhim Zuboon Nasser 1
1 Assistance lecturer, Department of Civil Engineering, University of Basrah, Iraq.
History
  • Received: April 30, 2012
  • Available Online: July 31, 2012
DOI

https://doi.org/10.33971/bjes.12.1.4

Abstract

The paper presents an experimental and theoretical study on the behavior of circular concrete filled aluminum tubular columns. The main purpose of the experimental program was to investigate the structural behavior of aluminum-concrete composite columns under axial compression loading conditions. Twenty four specimens were tested to investigate the effect of diameter, D/t ratio and slenderness ratio of a aluminum tube on the load carrying capacity of the concrete filled tubular columns. Diameter to wall thickness ratio ranged between 11.9 ≤ D/t ≤ 22.8, and the length to tube diameter ratios of 3 ≤ L/D ≤ 10 were investigated. The main purpose of the theoretical investigation was to predict the strength of aluminum -concrete composite columns subjected to axial compression loading conditions. The empirical equations proposed in the present study are capable of predicting the values of ultimate loads of aluminum -concrete composite columns and were in good agreement with the experimental values. The average values of ratios of experimental to predicted values of ultimate loads are 1.0104 for the proposed empirical equations. The circular hollow section tubes were fabricated by extrusion using 6061-T6 heat-treated aluminum alloy. The column strengths, load-axial shortening relationship and failure modes of columns were presented.

References

  1. Knowles, R. B., and Park, R., "Strength of concrete filled steel tubular columns", ASCE J. of the Struct. Div., v. 95, ST12, 1969, pp. 2565-2587.
  2. Schneider, S. P., "Axially loaded concrete-filled steel tubes", Journal of Structural Engineering, Vol. 124, No. 10, October 1998.
  3. Lam, D., and Wong, K. K. Y., "Axial capacity of concrete filled stainless steel columns", ASCE Journal of Structures, 2005, pp. 1107-1120.
  4. Uy, B., "Strength of concrete-filled steel box columns incorporating local buckling", J. Struct. Eng. ASCE, 2000;126(3):341–52.
  5. Uy, B., "Strength of short concrete filled high strength steel box columns", Journal of Constructional Steel Research, 57, 2001, pp. 113-134.
  6. Ge, H. B., and Usami, T., "Strength of concrete-filled thin-walled steel box column: experiment", J. Struct. Eng. ASCE, 1992;118(11):3036–54.
  7. Garder, J., and Jacobson, R., "Structural behavior of concrete filled steel tubes", ACI J. Struct. Div., 1967;64(7):404–13.
  8. Schneider, S. P., "Axially loaded concrete-filled steel tubes", J. Struct. Eng. ASCE, 1998;124(10):1125–38.
  9. Han, L. H., Yao, G. H., and Zhao, X. L., "Behavior and calculation on concrete filled steel CHS (circular hollow section) beam-columns", Steel Compos. Struct., 2004;4(3):169–88.
  10. Yang, Y. F., and Han, L. H., "Experimental behavior of recycled aggregate concrete filled steel tubular columns", Journal of Constructional Steel Research, 62, 2006, pp. 1310-1324.
  11. Ellobody, E., "Nonlinear behavior of concrete-filled stainless steel stiffened slender tube columns", Thin-Walled Structures, 45, 2007, pp. 259-273.
  12. Zhou, F., and Young, B., "Tests of concrete-filled aluminum stub columns", Thin-Walled Structures, 46, 2008, pp. 573-583.
  13. Zhou, F., and Young, B., "Concrete-filled aluminum circular hollow section column tests", Thin-Walled Structures, 47, 2009, pp. 1272-1280.
  14. Becque, J., "Analytical modeling of concrete columns confined by FRP", M.Sc. thesis, Department of Civil and Geological Engineering, University of Manitoba, 2000.
  15. Saafi, M., Toutanji, H. A., and Li, Z., "Behavior of concrete columns confined with fiber reinforced polymer tubes", ACI Materials Journal, Vol. 96, No. 4, 1999, pp. 500-509.
  16. Kurt, C. E., "Concrete filled structural plastic columns", Journal of the Structural Division, Proceedings of the American Society of Civil Engineers, Vol. 104, No. ST1, January 1978, pp. 55-63.
  17. Hong, W. K., and Kim, H. C., "Behavior of concrete columns confined by carbon composite tubes", Canadian Journal of Civil Eng., 31, 2, 2004, pp. 178–188.
  18. ACI, "Building code requirements for structural concrete and commentary (ACI 318-08)", Detroit (USA): American Concrete Institute; 2008.
  19. Sagban, A. S., "Experimental and theoretical investigation of PVC-concrete composite columns", Ph.D. thesis, Department of Civil Engineering, University of Basrah, 2010.