Journal
THIN-WALLED STRUCTURES
Volume 94, Issue -, Pages 155-166Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2015.04.020
Keywords
Concrete filled steel tube; Local compression; Finite element; Ultimate bearing capacity
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Funding
- Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) [IRT1296]
- Program for New Century Excellent Talents in University [NCET-11-0508]
- National Key Technology R&D Program, China [2011BAJ09B02]
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This paper presents a combined experimental and numerical study on the behavior of both circular and square concrete-filled steel tube (CFT) stub columns under local compression. Twelve circular and eight square CFT stub columns were tested to study their bearing capacity and the key influential parameters. A 3D finite element model was established for simulation and parametric study to investigate the structural behavior of the stub columns. The numerical results agreed well with the experimental results. In addition, analytical formulas were proposed to calculate the load bearing capacity of CFT stub columns under local compression. (C) 2015 Elsevier Ltd. All rights reserved.
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