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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:YU Feng,NIU Di-tao.Unified bearing capacity model of confined concrete column subjected to axial compression[J].Journal of Harbin Institute Of Technology(New Series),2009,16(5):638-642.DOI:10.11916/j.issn.1005-9113.2009.05.008.
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Unified bearing capacity model of confined concrete column subjected to axial compression
Author NameAffiliation
YU Feng School of Construction Engineering,Anhui University of Technology,Maanshan 243002,China 
NIU Di-tao College of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China 
Abstract:
To better study the behavior of confined concrete,this paper presents the basic hypothesis of ultimate equilibrium of confined concrete and the unified yield criteria of confining material.Based on the static equilibrium condition and yield criteria of components,a unified bearing capacity model of confined concrete column is proposed,and a simplified calculating equation of the model is also given.The model captures the character of confined concrete column.Effects of the confinement effect ratio,the lateral confinement ratio,unconfined concrete strength and the properties of confining material on the bearing capacity of confined concrete column are carefully considered.The model may be applicable to the calculation of bearing capacity of steel-confined concrete,concrete filled steel tube and FRP-confined concrete.The predictions of the model agree well with test data.
Key words:  confined concrete  bearing capacity  FRP  concrete filled steel tube  reinforced concrete
DOI：10.11916/j.issn.1005-9113.2009.05.008
Clc Number:TU528
Fund:

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