Axial compressive behaviour of tapered CFDST stub columns with large void ratio
Shi, Yan-Li; Ji, Sun-Hang; Wang, Wen-Da; Xian, Wei; Fan, Jia-Hao
2022-04
发表期刊Journal of Constructional Steel Research
ISSN0143-974X
卷号191
摘要An experimental and numerical investigation on tapered concrete-filled double skin steel tubular (CFDST) stub columns with large void ratio under axial compression is presented in this paper. Twelve tapered CFDST specimens with different parameters, namely the void ratio and the diameter-to-thickness ratio of outer steel tube, are tested. The load versus deformation curves, failure modes, effects of different parameters are studied, respectively. It is found that tapered CFDST specimens with large void ratio experience the strength failure, and severely outward buckling occurs near the column top. The diameter-to-thickness ratio of outer steel tube and the void ratio engender a significant influence on the ultimate capacity and ductility of tapered CFDST columns. A finite element (FE) model is developed to predict test results, and to further analyze the working mechanism of tapered columns. The result shows that changing the tapered angle and void ratio has distinct effects on the position of failure section and distribution of peak load of tapered columns. A method considering the influence of failure section is finally proposed for calculating the ultimate capacity of tapered CFDST columns and a good predicted result is presented. © 2022 Elsevier Ltd
关键词Columns (structural) Concretes Finite element method Concrete-filled double skin steel tube Diameter-to-thickness ratios Finite element analyse Steel tube Steel tube column Stub columns Tapered stub column Ultimate capacity Voids ratio
DOI10.1016/j.jcsr.2022.107206
收录类别EI ; SCIE
语种英语
WOS研究方向Construction & Building Technology ; Engineering
WOS类目Construction & Building Technology ; Engineering, Civil
WOS记录号WOS:000807626500002
出版者Elsevier Ltd
EI入藏号20220911739074
EI主题词Tubular steel structures
EI分类号408.2 Structural Members and Shapes ; 412 Concrete ; 545.3 Steel ; 921.6 Numerical Methods
来源库WOS
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/158031
专题土木工程学院
通讯作者Wang, Wen-Da
作者单位Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China
第一作者单位兰州理工大学
通讯作者单位兰州理工大学
第一作者的第一单位兰州理工大学
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GB/T 7714
Shi, Yan-Li,Ji, Sun-Hang,Wang, Wen-Da,et al. Axial compressive behaviour of tapered CFDST stub columns with large void ratio[J]. Journal of Constructional Steel Research,2022,191.
APA Shi, Yan-Li,Ji, Sun-Hang,Wang, Wen-Da,Xian, Wei,&Fan, Jia-Hao.(2022).Axial compressive behaviour of tapered CFDST stub columns with large void ratio.Journal of Constructional Steel Research,191.
MLA Shi, Yan-Li,et al."Axial compressive behaviour of tapered CFDST stub columns with large void ratio".Journal of Constructional Steel Research 191(2022).
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