| 题名 | Behavior of hybrid CFST with FRP-confined UHPC core under axial compression |
| 作者 | |
| 通讯作者 | Tao, Yi |
| 发表日期 | 2021-07-10
|
| DOI | |
| 发表期刊 | |
| ISSN | 1229-9367
|
| EISSN | 1598-6233
|
| 卷号 | 40期号:1页码:75-85 |
| 摘要 | A fiber-reinforced polymer (FRP)-confined concrete core that provides high strength and ductility under axial compression can act as strength enhancement in a hybrid column. In the present study, ordinary concrete was replaced with ultra-high-performance concrete (UHPC) to form an FRP-confined UHPC core (FCUC). The FCUC was embedded in square concrete-filled steel tube (CFST) columns to form a high-performance hybrid column (SCF-UHPC column for short). The axial compressive behavior of the SCF-UHPC was experimentally investigated using 12 SCF-UHPC columns and two ordinary CFST columns for comparison. The advantages of the SCF-UHPC include excellent axial load-bearing capacity, good ductility, and stable residual load-bearing capacity. The results show that failure of an SCF-UHPC column was caused by FRP rupture of FCUC, which occurred after steel tube buckling that results in the degraded stiffness. It was also shown that the load displacement behavior of the SCF-UHPC composite column was determined by the UHPC core diameter and the corresponding confinement provided by the outer steel tube and inner FRP jacket. A hardening effect could be achieved when the confinement demand of the UHPC core was satisfied, whereas a plateau effect appeared if the confinement was insufficient. Furthermore, the load-bearing capacity and ductility of the SCF-UHPC columns improved with increased thickness of the steel tube and the FRP. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 其他
|
| 资助项目 | National Key R&D Program of China[2017YFC0703004]
; National Natural Science Foundation of China[51978567]
; ShaanXi Natural Science Foundation[2018JM5074]
|
| WOS研究方向 | Construction & Building Technology
; Engineering
; Materials Science
|
| WOS类目 | Construction & Building Technology
; Engineering, Civil
; Materials Science, Composites
|
| WOS记录号 | WOS:000668232300006
|
| 出版者 | |
| EI入藏号 | 20213010671074
|
| EI主题词 | Axial compression
; Beams and girders
; Bearing capacity
; Ductility
; Fiber reinforced concrete
; Fiber reinforced plastics
; Loads (forces)
; Tubular steel structures
|
| EI分类号 | Structural Design:408
; Structural Members and Shapes:408.2
; Materials Science:951
|
| ESI学科分类 | ENGINEERING
|
| 来源库 | Web of Science
|
| 引用统计 |
被引频次[WOS]：8
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/240204 |
| 专题 | 工学院_海洋科学与工程系 |
| 作者单位 | 1.Xian Univ Architecture & Technol, Sch Civil Engn, Xian, Shaanxi, Peoples R China 2.Xian Univ Architecture & Technol, State Key Lab Green Bldg Western China, Xian, Shaanxi, Peoples R China 3.Tongji Univ, Coll Civil Engn, Shanghai, Peoples R China 4.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Guangdong, Peoples R China 5.Tsinghua Univ, Dept Civil Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Tao, Yi,Gu, Jin-Ben,Chen, Jian-Fei,et al. Behavior of hybrid CFST with FRP-confined UHPC core under axial compression[J]. STEEL AND COMPOSITE STRUCTURES,2021,40(1):75-85.
|
| APA |
Tao, Yi,Gu, Jin-Ben,Chen, Jian-Fei,&Feng, Peng.(2021).Behavior of hybrid CFST with FRP-confined UHPC core under axial compression.STEEL AND COMPOSITE STRUCTURES,40(1),75-85.
|
| MLA |
Tao, Yi,et al."Behavior of hybrid CFST with FRP-confined UHPC core under axial compression".STEEL AND COMPOSITE STRUCTURES 40.1(2021):75-85.
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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