[1] Zhao Ling, Li Aiqun,. Strength of circular concrete columns under concentric compression [J]. Journal of Southeast University (English Edition), 2003, 19 (1): 74-78. [doi:10.3969/j.issn.1003-7985.2003.01.017]
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Strength of circular concrete columns under concentric compression(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 19
- Issue:
- 2003 1
- Page:
- 74-78
- Research Field:
- Civil Engineering
- Publishing date:
- 2003-03-30
Info
- Title:
- Strength of circular concrete columns under concentric compression
- Author(s):
- Zhao Ling; Li Aiqun
- College of Civil Engineering, Southeast University, Nanjing 210096, China
- Keywords:
- columns; high strength concrete; hoop spacing; concentric loading
- PACS:
- TU375
- DOI:
- 10.3969/j.issn.1003-7985.2003.01.017
- Abstract:
- An experimental study, in which six columns were loaded concentrically to investigate the behavior of reinforced normal strength and high strength circular columns under concentric compression, is described. The concrete strengths of the columns were 30 MPa and 60 MPa. The primary variables considered were the concrete strength and the amount of transverse reinforcement. Test results indicate that smaller hoop spacing provides higher column capacity and greater strength enhancement in a confined concrete core of columns. For the same lateral confinement, high strength concrete columns develop lower strength enhancement than normal strength concrete columns. Both the strength enhancement ratio (f ′cc/f ′co)and the column capacity ratio(Ptest/Po)were observed to show linear increase variations with ρsfyt/f ′c in circular columns.
References:
[1] Razvi S R, Saatcioglu M. Circular high-strength concrete columns under concentric compression [J]. ACI Structural Journal, 1999, 96(5): 817-825.
[2] Mander J B, Priesley M J N, Park R. Observed stress-strain behavior of confined concrete [J]. Journal of Structural Engineering, ASCE, 1988, 114(8):1827-1849.
[3] Foster S J, Attard M M. Ductility and strength in HSC columns [A]. In:Engineering Foundation Conference on High Strength Concrete[C]. Hawaii, 1997. 13-17.
[4] Saatcioglu M, Razvi S. Strength and ductility of confined concrete [J]. Journal of Structural Engineering, ASCE, 1992, 118(6):1590-1607.
[5] Razvi S R, Saatcioglu M. Strength and deformability of confined high strength concrete columns [J]. ACI Structural Journal, 1994, 91(6): 678-687.
[6] Sugano S, Nagashima T, Kimura H, et al. Experimental studies on seismic behavior of reinforced concrete members of high strength concrete [A]. In: Utilization of High Strength Concrete-Second International Symposium[C]. Detroit: American Concrete Institute, 1990. 61-87.
Memo
- Memo:
- Biographies: Zhao Ling(1963—), female, graduate;Li Aiqun(corresponding author), male, doctor, professor, aiqunli@public1.ptt.js.cn.