Mechanical Performance of Stiffened Concrete Filled Double Skin Steel Tubular Stub Columns under Axial Compression

2019 ◽  
Vol 23 (5) ◽  
pp. 2281-2292 ◽  
Author(s):  
Hussein Ghanim Hasan ◽  
Talha Ekmekyapar
Keyword(s):  
Axial Compression ◽  
Mechanical Performance ◽  
Double Skin ◽  
Stub Columns

Mechanical behaviour of concrete filled double skin steel tubular stub columns confined by FRP under axial compression

2014 ◽  
Vol 17 (4) ◽  
pp. 431-452 ◽  
Author(s):  
Jun Wang ◽  
Weiqing Liu ◽  
Ding Zhou ◽  
Lu Zhu ◽  
Hai Fang
Keyword(s):  
Axial Compression ◽  
Mechanical Behaviour ◽  
Double Skin ◽  
Stub Columns

Behaviour of square concrete-filled stiffened steel tubular stub columns under axial compression

2019 ◽  
Vol 22 (8) ◽  
pp. 1878-1894 ◽  
Author(s):  
Fang Yuan ◽  
Hong Huang ◽  
Mengcheng Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Axial Compression ◽  
Mechanical Performance ◽  
Steel Tubes ◽  
Element Analysis ◽  
Section Modulus ◽  
Large Width ◽  
Stiffened Steel ◽  
Stub Columns

As China’s infrastructure grows rapidly, the use of concrete-filled steel tubular structures for engineering applications is attracting increasing interest owing to their high section modulus, high strength and good seismic performance. However, for concrete-filled steel tubular members with large width-to-thickness ratio, steel tubes are prone to outward buckling when they are subjected to axial compression. Welding of longitudinal stiffeners on the steel tubes is one of the most efficient approaches for delaying local buckling and thus improving the mechanical performance of such type of concrete-filled steel tubular members. This study attempts to investigate the axial compression behaviour of concrete-filled stiffened steel tubular members with square sections through experimental study and finite element analysis. First, 14 concrete-filled steel tubular stub columns, with different width-to-thickness ratios of steel tube and depth-to-thickness ratios of stiffener, were subjected to axial compression loads and tested. It was found that the use of stiffeners increases the ultimate strength and improves the stability of the stub columns. Later, an investigation on the behaviour of the stiffened concrete-filled steel tubular stub columns was carried out through a three-dimensional finite element analysis. The accuracy of the finite element analysis model was verified by the test results. A parametric study was conducted to further evaluate the stiffening schemes that influence the axial compression strength. Finally, the research findings were synthesized into a new simplified model to predict the load-carrying capacity of stiffened concrete-filled steel tubular stub columns that allows for large width-to-thickness ratios.

scholarly journals Mechanical performance of hexagonal multi-cell concrete-filled steel tubular (CFST) stub columns under axial compression

2019 ◽  
Vol 134 ◽  
pp. 71-83 ◽  
Author(s):  
Yong-Bo Zhang ◽  
Lin-Hai Han ◽  
Kan Zhou ◽  
Shangtong Yang
Keyword(s):  
Axial Compression ◽  
Mechanical Performance ◽  
Stub Columns

Behavior of octagonal concrete-filled double-skin steel tube stub columns under axial compression

2020 ◽  
Vol 170 ◽  
pp. 106115
Author(s):  
Shagea Alqawzai ◽  
Kang Chen ◽  
Le Shen ◽  
Miao Ding ◽  
Bo Yang ◽  
...  
Keyword(s):  
Axial Compression ◽  
Steel Tube ◽  
Double Skin ◽  
Stub Columns

Energy absorption of multi-cell stub columns under axial compression

2013 ◽  
Vol 68 ◽  
pp. 156-163 ◽  
Author(s):  
Xiong Zhang ◽  
Hui Zhang
Keyword(s):  
Energy Absorption ◽  
Axial Compression ◽  
Stub Columns

Compressive behaviour of tapered concrete-filled double skin steel tubular stub columns

2021 ◽  
Vol 184 ◽  
pp. 106771
Author(s):  
Ran Deng ◽  
Xu-Hong Zhou ◽  
Xiao-Wei Deng ◽  
Ke Ke ◽  
Jiu-Lin Bai ◽  
...  
Keyword(s):  
Compressive Behaviour ◽  
Double Skin ◽  
Stub Columns

Experimental study of UHPC-encased CFST stub columns under axial compression

Structures ◽  
2021 ◽  
Vol 32 ◽  
pp. 433-447
Author(s):  
Qingxiong Wu ◽  
Zhimin She ◽  
Huihui Yuan
Keyword(s):  
Experimental Study ◽  
Axial Compression ◽  
Stub Columns

Loading paths of confined concrete in circular concrete loaded CFT stub columns subjected to axial compression

2018 ◽  
Vol 156 ◽  
pp. 21-31 ◽  
Author(s):  
Yan-Gang Zhao ◽  
Siqi Lin ◽  
Zhao-Hui Lu ◽  
Takasuke Saito ◽  
Liusheng He
Keyword(s):  
Axial Compression ◽  
Confined Concrete ◽  
Loading Paths ◽  
Stub Columns
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