Axial Compression Behaviour of Long Concrete Filled Double Skinned Steel Tubular Columns

Structures ◽  
2017 ◽  
Vol 9 ◽  
pp. 157-164 ◽  
Author(s):  
Sulthana U. M. ◽  
Jayachandran S. A.
Keyword(s):  
Axial Compression ◽  
Tubular Columns ◽  
Compression Behaviour

scholarly journals Investigations on global buckling behaviour of concrete-filled double-skinned steel tubular columns

2018 ◽  
Author(s):  
U. Mashudha Sulthana ◽  
S. Arul Jayachandran
Keyword(s):  
Axial Compression ◽  
Numerical Models ◽  
Axial Deformation ◽  
Governing Parameter ◽  
Tubular Columns ◽  
Axial Capacity ◽  
Compression Behaviour ◽  
Structural Resistance ◽  
Global Buckling ◽  
Stub Column

Concrete-Filled Double-skinned Steel Tubular columns (CFDST) are proved to possess exceptional structural resistance in case of fire and multi-hazard situations. This superior quality of CFDST makes it preferable in long column applications. However, studies on the long column behaviour of CFDST is very few, and their results are not in line with the behaviour of CFST long columns. Whereas, several researches on stub column CFDST shows that, the axial compression behaviour of CFDST is similar to CFST. In this paper, selected results (4 numbers of circular CFDST specimens) from a large test data is presented. Axial compression behaviour of long column CFDST specimens is studied, with non-dimensional slenderness λ around 1.0, and hollowness ratio as the governing parameter for study. Test results namely, axial load carrying capacity, axial deformation and lateral deflection are presented in this paper. Numerical models are also developed and validated with the experimental results, to carry out more parametric studies. Further, the experimental axial capacity values are compared with modified capacity equations from EC4 and AISC. Results show that extended EC4 and AISC equations gives conservative predictions for CFDST column even in the long column range. Moreover, the initial imperfections in the specimen and their corresponding boundary conditions for load application, are found to be governing parameters in long column buckling study.

Axial compression behaviour of all-composite modular wall system

2021 ◽  
pp. 113986
Author(s):  
Arvind Sharda ◽  
Allan Manalo ◽  
Wahid Ferdous ◽  
Yu Bai ◽  
Lachlan Nicol ◽  
...  
Keyword(s):  
Axial Compression ◽  
Compression Behaviour ◽  
Wall System

Behavior of hybrid FRP-concrete-steel double-skin tubular columns subjected to cyclic axial compression

2012 ◽  
Vol 61 ◽  
pp. 196-203 ◽  
Author(s):  
T. Yu ◽  
B. Zhang ◽  
Y.B. Cao ◽  
J.G. Teng
Keyword(s):  
Axial Compression ◽  
Tubular Columns ◽  
Double Skin
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