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 |
ISSN | 0143-974X |
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 |
DOI | 10.1016/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 | |
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 |
推荐引用方式 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). |
条目包含的文件 | 条目无相关文件。 |
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