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A platform for research: civil engineering, architecture and urbanism
Comparative study of square stirrup-confined concrete-filled steel tubular stub columns under axial loading
Abstract This paper presents a comparative study and a 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. The results indicated that: (1) The ultimate load-bearing capacity of CFT stub columns with internal studs was no improvement; (2) All three forms of stirrup confinement effectively reduced local bucking of the steel tube, and the cross ties was optimal, followed by spiral stirrups; (3) With the same overall steel ratio, the behavior of the square stirrup-confined CFT stub columns was considerably higher than in the square CFT stub columns.
Highlights The ultimate bearing capacity with internal studs was no improvement. Cross ties provide optimal confinement. Stirrup-confined CFT behave superior to CFT stub columns.
Comparative study of square stirrup-confined concrete-filled steel tubular stub columns under axial loading
Abstract This paper presents a comparative study and a 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. The results indicated that: (1) The ultimate load-bearing capacity of CFT stub columns with internal studs was no improvement; (2) All three forms of stirrup confinement effectively reduced local bucking of the steel tube, and the cross ties was optimal, followed by spiral stirrups; (3) With the same overall steel ratio, the behavior of the square stirrup-confined CFT stub columns was considerably higher than in the square CFT stub columns.
Highlights The ultimate bearing capacity with internal studs was no improvement. Cross ties provide optimal confinement. Stirrup-confined CFT behave superior to CFT stub columns.
Comparative study of square stirrup-confined concrete-filled steel tubular stub columns under axial loading
Ding, Fa-xing (author) / Lu, De-ren (author) / Bai, Yu (author) / Zhou, Qi-shi (author) / Ni, Ming (author) / Yu, Zhi-wu (author) / Jiang, Guo-shuai (author)
Thin-Walled Structures ; 98 ; 443-453
2015-10-17
11 pages
Article (Journal)
Electronic Resource
English
| DOAJ | 2019