Axial Compressive Behavior of Outer Square Inner Circular Spontaneous Combustion Coal Gangue Concrete-Filled Double-Skin Steel Tubular Stub Column

被引:0
|
作者
Wang, Jinli [1 ]
Wang, Chunyuan [1 ]
Gao, Zhe [2 ]
Wei, Haoyan [1 ]
Hu, Zhengping [1 ]
Wang, Weiwei [3 ,4 ]
机构
[1] Liaoning Tech Univ, Sch Civil Engn, Fuxin 123000, Peoples R China
[2] Fuzhou Univ Foreign Studies & Trade, Sch Intelligent Construct, Fuzhou 388000, Peoples R China
[3] Guangzhou Vocat Univ Sci & Technol, Sch Architectural Engn, Guangzhou 510000, Peoples R China
[4] South China Univ Technol, Sch Civil Engn & Transportat, Guangzhou 510641, Peoples R China
关键词
coal gangue; concrete filled double-skin steel tubular; stub column; axial compressive behavior; finite element analysis; CFST; PERFORMANCE; STRENGTH; TUBES; MODEL;
D O I
10.3390/buildings14124064
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Utilizing crushed spontaneous combustion coal gangue as a coarse aggregate in concrete preparation effectively reduces reliance on natural resources and mitigates environmental pollution; however, the suboptimal workability of spontaneous combustion coal gangue coarse aggregate concrete (SCG-CAC) limits its engineering applications. To address this issue, this study places SCGCAC at the center of a CFDST (Concrete-Filled Double-Skin Steel Tubular) stub column. Through finite element modeling validated for reliability, this study examines the structural mechanical response to axial loading, along with the effects of various parameters. The analysis encompasses parameters such as the strength of the core SCGCAC (fc,i), the strength of the sandwiched concrete (fc,o), the yield strength of the outer steel tube (fy,o), the yield strength of the inner steel tube (fy,i), the width-to-thickness ratio (B/to), the diameter-to-thickness ratio of the inner tube (D/ti), and the diameter-to-width ratio of the outer tube (D/B). Results show that this structural configuration significantly enhances the core SCGCAC ultimate bearing capacity, and increases in D/ti, fc,i, fc,o, fy,i, and B/to all lead to an increase in the peak load. Particularly, when D/ti increases from 28.57 to 80, the peak load increases by 42.72%. However, changes in fy,o and D/B have no significant effect on the peak load.
引用
收藏
页数:21
相关论文
共 50 条
  • [1] Axial compressive behavior of circular concrete-filled steel tube stub columns prepared with spontaneous-combustion coal gangue aggregate
    Zhang, Yuzhuo
    Xu, Qian
    Wang, Qinghe
    Zhou, Mei
    Liu, Haiqing
    Guo, Haiyang
    JOURNAL OF BUILDING ENGINEERING, 2022, 48
  • [2] Eccentric compressive behavior of square concrete-encased concrete-filled double-skin steel tubular stub columns
    Ding, Ji-nan
    Wang, Qinghe
    Ren, Qingxin
    Liu, Changyong
    Li, Minglun
    Zhang, Xinlong
    JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2024, 214
  • [3] Study on the behavior of concrete-filled square double-skin steel tubular stub columns under axial loading
    Ding, Fa-xing
    Wang, Wen-jun
    Lu, De-ren
    Liu, Xue-mei
    STRUCTURES, 2020, 23 : 665 - 676
  • [4] Mechanical behavior of outer square inner circular concrete-filled dual steel tubular stub columns
    Ding, Fa-xing
    Wang, Wenjun
    Liu, Xue-mei
    Wang, Liping
    Yi-Sun
    STEEL AND COMPOSITE STRUCTURES, 2021, 38 (03): : 305 - 317
  • [5] Axial compressive performance of square concrete-encased concrete-filled double-skin steel tube stub columns
    Ding, Ji-nan
    Ren, Qingxin
    Wang, Qinghe
    Yu, Jiahuan
    Li, Yongjin
    ENGINEERING STRUCTURES, 2023, 276
  • [6] Axial Compressive Behavior of Thin-Walled Concrete-Filled Double-Skin Steel Tubular Stub Columns with Connecting Strips
    Shen, Le
    Ding, Miao
    Feng, Chen
    Alqawzai, Shagea
    Elchalakani, Mohamed
    Yang, Bo
    JOURNAL OF STRUCTURAL ENGINEERING, 2022, 148 (02)
  • [7] Compressive strengths of concrete-filled double-skin (circular hollow section outer and square hollow section inner) aluminium tubular sections
    Zhou, Feng
    Young, Ben
    ADVANCES IN STRUCTURAL ENGINEERING, 2019, 22 (11) : 2418 - 2434
  • [8] Axial Compressive Behaviours of Coal Gangue Concrete-Filled Circular Steel Tubular Stub Columns after Chloride Salt Corrosion
    Zhang, Tong
    Wang, Hongshan
    Zheng, Xuanhe
    Gao, Shan
    MATERIALS, 2024, 17 (11)
  • [9] Axial compressive behaviors of multi-cavity concrete-filled double-skin tubular stub columns
    Li, Zi-Jun
    Gong, Jun
    Shao, Yong-Bo
    Huang, Wei-Feng
    Zhang, Xiao
    JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2024, 216
  • [10] Axial Behavior of Concrete-Filled Double-Skin Tubular Stub Columns Incorporating PVC Pipes
    Javed, Muhammmad Faisal
    Rafiq, Haris
    Khan, Mohsin Ali
    Aslam, Fahid
    Musarat, Muhammad Ali
    Vatin, Nikolai Ivanovich
    CRYSTALS, 2021, 11 (12)