Seismic Performance of Circular High-Strength Concrete Columns

Little experimental research is available for high-strength columns (HSC) under combined cyclic flexure and axial loads. This paper seeks to fill this gap by presenting results from tests of six large-scale spirally reinforced HSC circular columns under reverse cyclic flexure and constant axial loads. The tests were conducted to examine the post-elastic behavior and the ductility level reached by HSC circular columns designed according to the 2004 Canadian Standards Association A23.3 requirements for transverse steel reinforcement. The columns were subjected to constant axial loads and a cyclic horizontal load-inducing reversed bending moment. Findings show that columns designed according to the confinement reinforcement requirements of the Canadian standard can achieve adequate ductility if the transverse reinforcement chosen accounts for the axial load level and the transverse-steel yield strength. Concrete columns that have different transverse-steel yield strength and different axial-load levels will have adequate sectional ductility.

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  • Authors:
    • Paultre, Patrick
    • Eid, Rami
    • Robles, Hugo Ita
    • Bouaanani, Najib
  • Publication Date: 2009-7


  • English

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  • Accession Number: 01139602
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 10 2009 11:42AM