Experimental Research and Bearing Capacity Calculation of Ceramsite Concrete Filled Circular Steel Tube Short Column Under Uniaxial Compression

WANG Yuhang; ZHAO Yuting; ZHOU Xuhong; LI Qiqi

doi:10.13204/j.gyjzG21112411

Volume 52 Issue 1

Apr. 2022

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WANG Yuhang, ZHAO Yuting, ZHOU Xuhong, LI Qiqi. Experimental Research and Bearing Capacity Calculation of Ceramsite Concrete Filled Circular Steel Tube Short Column Under Uniaxial Compression[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(1): 1-7. doi: 10.13204/j.gyjzG21112411

Citation:

WANG Yuhang, ZHAO Yuting, ZHOU Xuhong, LI Qiqi. Experimental Research and Bearing Capacity Calculation of Ceramsite Concrete Filled Circular Steel Tube Short Column Under Uniaxial Compression[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(1): 1-7. doi: 10.13204/j.gyjzG21112411

Citation:

WANG Yuhang, ZHAO Yuting, ZHOU Xuhong, LI Qiqi. Experimental Research and Bearing Capacity Calculation of Ceramsite Concrete Filled Circular Steel Tube Short Column Under Uniaxial Compression[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(1): 1-7. doi: 10.13204/j.gyjzG21112411

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Experimental Research and Bearing Capacity Calculation of Ceramsite Concrete Filled Circular Steel Tube Short Column Under Uniaxial Compression

doi: 10.13204/j.gyjzG21112411

School of Civil Engineering, Chongqing University, Chongqing 400044, China

Received Date: 2021-11-24
Available Online: 2022-04-24

Abstract

Abstract

Uniaxial compression tests were carried out on 14 short ceramsite concrete columns confined by circular steel tubes. The effects of the yield strength of steel tube, the ratio of diameter to thickness, and the contact between steel tube and ceramsite concrete on the failure mode, load-displacement curve, load-strain curve, load-lateral deformation coefficient, and bearing capacity were studied experimentally. The results showed that all specimens exhibited shear failure under axial compression, and the shear angle was about 60°, and the load-displacement curve had no obvious descending section. When D/t ≥ 19, the ultimate bearing capacity increased with the decrease of the ratio of diameter to thickness. The higher the yield strength of steel pipe and the film between the steel pipe and the concrete, the greater the restraint effect of the steel pipe on the concrete. The calculation results were in good agreement with the test results without considering the influence of the contact between steel tube and concrete.
- ceramsite concrete filled circular steel tube,
- uniaxial compression,
- effect of restraint,
- ultimate bearing capacity,
- contact

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References(28)

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