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Analytical Investigation on Hybrid Triple Skinned CFST Under the Effect of Sudden Impact

Khalid Abdel Naser Abdel Rahim

World Journal of Civil Engineering and Architecture 1(1); 10.31586/wjcea.2022.223 - February 14, 2022

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Abstract

This paper is a continuation of the researches which were carried out by [1,2,3]. Accordingly, this manuscript proposes analytical analysis of a novel triple skin Concrete Filled Steel Tube (CFST) und... Read more

Figure 1. Schematic sketch of the CFDST cross section and material properties for specimens with hollowness ratio of 0.44 by [19].

Figure 2. Schematic sketch of the CFDST cross section and material properties for specimens with hollowness ratio of 0.69 by [19].

Figure 3. Schematic sketch of the CFDST cross section and material properties for specimens with hollowness ratio of 0.81 by [19].

Figure 4. Schematic sketch of CFDST cross section with 1st modification by [1-3] and material properties for specimens with 48mm outer diameter of the internal tube.

Figure 5. Schematic sketch of CFDST cross section with 1st modification by [1-3] and material properties for specimens with 76mm outer diameter of the internal tube.

Figure 6. Schematic sketch of CFDST cross section with 1st modification by [1-3] and material properties for specimens with 89mm outer diameter of the internal tube.

Figure 7. Schematic sketch of CFDST cross section with 2nd modification by [1-3] and material properties for specimens with hollowness ratio of 0.44.

Figure 8. Schematic sketch of CFDST cross section with 2nd modification by [1-3] and material properties for specimens with hollowness ratio of 0.69.

Figure 9. Schematic sketch of CFDST cross section with 2nd modification by [1-3] and material properties for specimens with hollowness ratio of 0.81.

Figure 10. Schematic sketch of CFDST cross section with 3rd modification by [1-3] and material properties for specimens with 48mm outer diameter of the internal tube.

Figure 11. Schematic sketch of CFDST cross section with 3rd modification by [1-3] and material properties for specimens with 76mm outer diameter of the internal tube.

Figure 12. Schematic sketch of CFDST cross section with third modification by [1-3] and material properties for specimens with 89mm outer diameter of the internal tube.

Figure 13. Schematic sketch of the first proposition of novel triple skin CFST and material properties for specimens with an addition 2nd internal tube (D=81.32mm).

Figure 14. Schematic sketch of the first proposition of novel triple skin CFST and material properties for specimens with an addition 3rd internal tube (D=38mm).

Figure 15. Schematic sketch of the first proposition of novel triple skin CFST and material properties for specimens with an addition 3rd internal tube (D=64mm).

Figure 16. Schematic sketch of the second proposition of novel triple skin CFST and material properties for specimens with an addition 2nd internal tube (D=81.32mm).

Figure 17. Schematic sketch of the second proposition of novel triple skin CFST and material properties for specimens with an addition 3rd internal tube (D=38mm).

Figure 18. Schematic sketch of the second proposition of novel triple skin CFST and material properties for specimens with an addition 3rd internal tube (D=64mm).

Figure 19. Novel Triple Skin Concrete Filled Steel Tubes (TSCFST), where (a) Proposed Model; (b) Elements and meshing.

Figure 20. Novel triple skin CFST numerical model under the effect of sudden impact.

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