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Concrete-filled bimetallic tubes (CFBT) under axial compression: Analytical behaviour
AbstractConcrete-filled bimetallic tubes (CFBT) could be recognized as a type of steel-concrete composite members, and have the potential to be applied in engineering structures. A three-dimensional finite element analysis (FEA) model is established to further study the axial compressive behaviour of circular CFBT stub columns in this paper. The preciseness of the FEA predictions is evaluated by comparison with experimental results collected from ten CFBT column specimens tested in a companion paper (Ye et al., 2016) [15]. Good agreement is obtained between the FEA predictions and the test results in terms of failure pattern, load versus deformation response, ultimate strength, and strain development of the two steel tube layers. In light of the FEA results, the stresses of concrete and steel, as well as the interactions and load distribution between different components of the composite section are investigated. Finally,parametric study is performed and a simplified model is proposed to be used to calculate the ultimate strength of circular CFBT stub columns.
HighlightsFEA modelis established to simulate stub CFBT columns under axial compression.Force distributions among the concrete core and two steel tube layers are investigated.Characteristic of interaction stresses between different components is investigated.Simplified model is proposed to predict the load-carrying capacity of stub CFBT columns.
Concrete-filled bimetallic tubes (CFBT) under axial compression: Analytical behaviour
AbstractConcrete-filled bimetallic tubes (CFBT) could be recognized as a type of steel-concrete composite members, and have the potential to be applied in engineering structures. A three-dimensional finite element analysis (FEA) model is established to further study the axial compressive behaviour of circular CFBT stub columns in this paper. The preciseness of the FEA predictions is evaluated by comparison with experimental results collected from ten CFBT column specimens tested in a companion paper (Ye et al., 2016) [15]. Good agreement is obtained between the FEA predictions and the test results in terms of failure pattern, load versus deformation response, ultimate strength, and strain development of the two steel tube layers. In light of the FEA results, the stresses of concrete and steel, as well as the interactions and load distribution between different components of the composite section are investigated. Finally,parametric study is performed and a simplified model is proposed to be used to calculate the ultimate strength of circular CFBT stub columns.
HighlightsFEA modelis established to simulate stub CFBT columns under axial compression.Force distributions among the concrete core and two steel tube layers are investigated.Characteristic of interaction stresses between different components is investigated.Simplified model is proposed to predict the load-carrying capacity of stub CFBT columns.
Concrete-filled bimetallic tubes (CFBT) under axial compression: Analytical behaviour
Ye, Yong (author) / Han, Lin-Hai (author) / Guo, Zi-Xiong (author)
Thin-Walled Structures ; 119 ; 839-850
2017-08-08
12 pages
Article (Journal)
Electronic Resource
English
Concrete-filled bimetallic tubes (CFBT) under axial compression: Analytical behaviour
| Online Contents | 2017
Concrete-filled bimetallic tubes under axial compression: Experimental investigation
| Online Contents | 2016
Analytical Studies of Concrete-Filled Circular Steel Tubes under Axial Compression
| British Library Online Contents | 2010