Comparative study of stirrup-confined circular concrete-filled steel tubular stub columns under axial loading
Fa-xing Ding, Jiang Zhu, ShanShan Cheng, Xuemei Liu
THIN-WALLED STRUCTURES | ELSEVIER SCI LTD | Published : 2018
This paper presents a comparative study of circular concrete-filled steel tubular stub columns with three different stirrup confinement types: bidirectional stirrups, loop stirrups and orthogonal stirrups. Axial compression tests have been carried out aiming at investigating the effects of the stirrup form and volume-stirrup ratio on the mechanical behavior of the stirrup-confined circular CFT stub columns, and ABAQUS was used to carry out the 3D numerical modelling. Radial stress of the core concrete and the composite action among the steel tube, stirrups and the core concrete have been investigated. It is found that the confinement provided by stirrups on core concrete strongly outperforms..View full abstract
Awarded by National Natural Science Foundation of China
This research work was financially supported by the National Natural Science Foundation of China, Grant no. 51578548.