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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Zhang Xi,ZHANG Su-mei,LIU Jie-peng.Behavior and design method of square-tubed reinforced concrete short columns under axial compression[J].Journal of Harbin Institute Of Technology(New Series),2010,17(2):269-277.DOI:10.11916/j.issn.1005-9113.2010.02.023.
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Behavior and design method of square-tubed reinforced concrete short columns under axial compression
Author NameAffiliation
Jasim Ali Abdullah School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China 
Zhang Xi School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China 
ZHANG Su-mei School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China 
LIU Jie-peng School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China 
Abstract:
The behavior of square-tubed reinforced concrete (STRC) short columns subjected to axial compression was studied in detail with an accurate nonlinear finite element model (FEM) . Different width to thickness ratios (D/t = 50 150) of the steel tube and the compressive strength of concrete (C80 and C50) were adopted in this research. The axial load strength,steel tube strain and load-shortening response were determined from FEM and the analysis results from FEM were compared with those from experiment. The analysis and test results indicate that the concrete strength little affectes the confinement of the steel tube on the concrete. The transverse stress of the tube at the axial load point increases with the increment in the width to thickness ratio. Based on the results from FEM and experiment,a formula for the prediction of the axial load strength was proposed in this paper.
Key words:  square-tubed RC (STRC)  finite element model (FEM)  width to thickness ratio  axial load strength
DOI:10.11916/j.issn.1005-9113.2010.02.023
Clc Number:TU398.9
Fund:

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