Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression
Fa-xing Ding, Jing Liu, Xue-mei Liu, Zhi-wu Yu, Da-wen Li
THIN-WALLED STRUCTURES | ELSEVIER SCI LTD | Published : 2015
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.
Awarded by Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT)
Awarded by Program for New Century Excellent Talents in University
Awarded by National Key Technology R&D Program, China
This research work was financially supported by the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), Grant no. IRT1296, the Program for New Century Excellent Talents in University, Grant no. NCET-11-0508, and the National Key Technology R&D Program, China Grant no. 2011BAJ09B02.