Comparative study of square stirrup-confined concrete-filled steel tubular stub columns under axial loading
作者： Fa-xing Ding , De-ren Lu , Yu Bai , Qi-shi Zhou , Ming Ni
DOI: 10.1016/J.TWS.2015.10.018
关键词: Structural engineering 、 Steel tube 、 Finite element method 、 Stub (electronics) 、 Composite material 、 Stirrup 、 Engineering
摘要: Abstract This paper presents a comparative study and 3D finite element (FE) model of square stirrup-confined concrete-filled steel tubular (stirrup-confined CFT) stub columns. The FE results agreed well with the experimental results. indicated that: (1) ultimate load-bearing capacity CFT columns internal studs was no improvement; (2) All three forms stirrup confinement effectively reduced local bucking tube, cross ties optimal, followed by spiral stirrups; (3) With same overall ratio, behavior considerably higher than in
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