Experimental investigation on punching shear behavior of the embedded column base for CFSTs

被引：6
作者：
Tan, Shasha [1 ,2 ]
Jia, Chen [1 ,2 ]
Guo, Lanhui [1 ,2 ]
Ou, Fusheng [1 ,2 ,3 ]
Xu, Yan [1 ,2 ]
机构：
[1] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
[2] Harbin Inst Technol, Control Minist Educ, Key Lab Struct Dynam Behav, Harbin 150090, Peoples R China
[3] Bur Publ Works Shenzhen Municipal, Shenzhen 518028, Peoples R China
来源：
ENGINEERING STRUCTURES | 2022年 / 263卷
基金：
中国国家自然科学基金;
关键词：
Embedded column base; Concrete-filled steel tube; Punching; Design method; CONCRETE-FILLED TUBE; SEISMIC PERFORMANCE; DESIGN;
D O I：
10.1016/j.engstruct.2022.114371
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, the punching shear behavior of the embedded column base for the concrete-filled steel tube is experimentally studied. Push-out tests were firstly conducted to obtain the bond strength between the steel tube and the foundation concrete. Punching tests were then performed on ten specimens to reveal the working mechanism of the embedded column base with shear studs. The test results indicated that shear studs changed the load path, enlarging the punching section of the foundation and improving the punching shear resistance of the column base. It was also found that the diameter of the shear studs and the distance between the shear studs could affect the punching shear resistance significantly. Finally, a method was proposed to determine the punching shear resistance of the embedded column base for the concrete-filled steel tube, by adding up the contributions from the different components of the system, including the bond force and shear resistance of studs above the punching section, and the resistance of foundation. The predicted results showed good agreement with the experimental results, with errors not greater than & PLUSMN; 15%.
引用
收藏
页数：11
相关论文
共 26 条
  • [1] ACI 318, 2019, 318R19 ACI
  • [2] [Anonymous], 2015, 500102010 GB MIN HOU
  • [3] [Anonymous], 2005, Eurocode 2: Design of concrete structures-Part 1-1: General rules and rules for buildings
  • [4] [Anonymous], 2017, 500172017 GB
  • [5] [Anonymous], 2014, GB 50936-2014
  • [6] Using composite yield mechanism to mitigate seismic damage to exposed steel column base connections
    Cui, Yao
    Wang, Fengzhi
    Yang, Cancan
    Li, Hao
    He, Yangzi
    [J]. ENGINEERING STRUCTURES, 2021, 232
  • [7] GB/T, 2010, GBT22812010
  • [8] Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members
    Han, Lin-Hai
    Li, Wei
    Bjorhovde, Reidar
    [J]. JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2014, 100 : 211 - 228
  • [9] Improving seismic performance of concrete-filled tube to base connections
    Hsu, H. -L.
    Lin, H. -W.
    [J]. JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2006, 62 (12) : 1333 - 1340
  • [10] Jin B, 2008, IND CONSTRUCTION, V38, P5
123