Eccentric compression behavior of CFRP-confined reactive powder concrete-filled steel tube slender columns

被引：0
|
作者：
Li, Song [1 ]
Jiao, Chu-jie [2 ]
He, Song-song [2 ]
Feng, Wan-hui [1 ]
机构：
[1] College of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou,510225, China
[2] School of Civil Engineering and Transportation, Guangzhou University, Guangzhou,510006, China
来源：
Journal of Building Engineering | 2024年 / 97卷
关键词：
Ultra high and large-span structural components are needed in urban modernization construction to meet the engineering requirements. Reactive powder concrete-filled steel tubes (RPCFSTs) provide a cost-effective and efficient solution for optimizing space utilization in super high-rise buildings and enhancing the crossing capacity of bridge; which accords with such development. However; these components have inherent drawbacks in terms of local buckling and corrosion resistance. The use of carbon fiber reinforced polymer (CFRP) confinement to suppress this innate deficiency has been proven to show great advantages in limited trial results. This article establishes a comprehensive test scheme to investigate the eccentric compression performance of CFRP-confined RPCFST columns. A total of 11 specimens were prepared and subjected to biased compression test by varying the component length (400; 800; 1200; and; 1600; mm); number of CFRP layers (0–3); and load eccentricity (0; 10; 20; 30; and 40 mm). The results showed that the CFRP confinement could effectively enhance the bearing capacity and energy dissipation capability of RPCFST columns while delaying the local buckling of slender specimens with low slenderness ratios. The improvement of ultimate load due to CFRP confinement exceeded 42.5 %. However; in specimens with higher slenderness ratios and with increasing load eccentricity; the confinement effect of the steel tube on the core RPC tended to weaken. An N–M interaction model for slender CFRP-confined RPCFST columns was established; and this model was validated to be in good agreement with the experimental results. The conclusions drawn from this study might given a solid foundation for the future application of CFRP-confined RPCFST structures. © 2024 Elsevier Ltd;
D O I：
10.1016/j.jobe.2024.110931
中图分类号：
学科分类号：
摘要：
引用
收藏
相关论文
共 50 条
  • [1] Numerical Analysis of Eccentric Compression Performance of CFRP-Confined Concrete-Filled Steel Tube (CFST) Columns
    Yunfeng Z.
    Daolin G.
    Baorui M.
    Journal of The Institution of Engineers (India): Series A, 2022, 103 (02) : 543 - 555
  • [2] Axial behavior of slender reactive powder concrete-filled steel tubular columns confined by CFRP
    Li, Song
    Jiao, Chu-jie
    He, Song-song
    ENGINEERING STRUCTURES, 2021, 240
  • [3] Behavior of CFRP-confined reactive powder concrete-filled steel tubes under axial compression
    Li, Song
    Jiao, Chu-Jie
    ADVANCES IN STRUCTURAL ENGINEERING, 2021, 24 (07) : 1368 - 1383
  • [4] Behavior of CFRP-confined Concrete-filled square steel tube columns with section circularized under axial compression
    Hu, Zhongjun
    Wen, Yuchuan
    Wang, Boxin
    Li, Xin
    Xu, Yan
    ENGINEERING STRUCTURES, 2022, 252
  • [5] Eccentric compression behavior of concrete-filled steel tube columns strengthened by CFRP/steel strip
    Miao, Kunting
    Wei, Yang
    Zhang, Shichang
    Zheng, Kaiqi
    Ding, Mingmin
    ENGINEERING STRUCTURES, 2023, 287
  • [6] Axial compression behavior of CFRP-confined square concrete-filled double skin tube stub columns with stainless steel outer tube
    Tang, Hongyuan
    Wang, Huixiang
    Liu, Ruizhong
    Zou, Xue
    Jia, Yigang
    OCEAN ENGINEERING, 2022, 266
  • [7] Axial compression behavior of CFRP-confined rectangular concrete-filled stainless steel tube stub column
    Tang, Hongyuan
    Liu, Ruizhong
    Zhao, Xin
    Guo, Rui
    Jia, Yigang
    FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING, 2021, 15 (05) : 1144 - 1159
  • [8] Axial compression behavior of CFRP-confined rectangular concrete-filled stainless steel tube stub column
    Hongyuan TANG
    Ruizhong LIU
    Xin ZHAO
    Rui GUO
    Yigang JIA
    Frontiers of Structural and Civil Engineering, 2021, (05) : 1144 - 1159
  • [9] Axial compression behavior of CFRP-confined rectangular concrete-filled stainless steel tube stub column
    Hongyuan Tang
    Ruizhong Liu
    Xin Zhao
    Rui Guo
    Yigang Jia
    Frontiers of Structural and Civil Engineering, 2021, 15 : 1144 - 1159
  • [10] Experimental Study on CFRP-Confined Circularized Concrete-Filled Square Steel Tube Short Columns
    Wen, Yuchuan
    Hu, Zhongjun
    Li, Anningjing
    Li, Quanheng
    Li, Xuepeng
    Xu, Yan
    ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2021, 2021
12345