Finite Element Analysis of Self-Compacted Concrete Filled Steel Tube Columns Exposed to High Temperatures

Qais F. Hasan; Waleed Khalid Mohammed; Khamees N. Abdulhaleem; Shwan H. Said

doi:10.26706/ijaefea.1.10.20239252

Finite Element Analysis of Self-Compacted Concrete Filled Steel Tube Columns Exposed to High Temperatures

Waleed Khalid Mohammed, Khamees N. Abdulhaleem, Shwan H. Said, Qais F. Hasan
International Journal of Analytical, Experimental and Finite Element Analysis
Volume 10: Issue 1, March 2023, pp 1-10

Author's Information

Qais F. Hasan⁴

Corresponding Author

⁴Departmrnt of Suveying Engineering, Technical Engineering College- Kirkuk, Northern Technical University, Iraq

dr.qaishasan@ntu.edu.iq

Waleed Khalid Mohammed¹, Khamees N. Abdulhaleem²

Civil Engineering Department, University of Kirkuk, Kirkuk, Iraq

Shwan H. Said³

Department of Environmental Engineering and Pollution, Technical Engineering College- Kirkuk, Northern Technical University, Iraq

Research Article -- Peer Reviewed

Published online – 31 March 2023

Open Access article under Creative Commons License

Cite this article – Waleed Khalid Mohammed and Khamees N. Abdulhaleem, “Finite Element Analysis of Self-Compacted Concrete Filled Steel Tube Columns Exposed to High Temperatures”, International Journal of Analytical, Experimental and Finite Element Analysis, RAME Publishers, vol. 10, issue 1, pp. 1-10, March 2023.

https://doi.org/10.26706/ijaefea.1.10.20239252

Abstract:-

To represent the structural behavior of self-compacted concrete filled steel tube composite columns under axial compression loading after high temperatures exposure, a nonlinear three dimensional finite element analysis model has been achieved to analyze these columns using ANSYS R-15 software. An eight-node solid brick element (Solid65) is used to represent the concrete, while a four-node isoparametric shell element (Shell63) is used to represent the steel tube for the analyzed composite columns. A Newton-Raphson incremental-iterative approach is used to simulate the nonlinear solution technique. The finite element method results indicated that the predicted ultimate loads and axial deformations for the analyzed four column specimens agree well with the experimental results for normal strength and high strength concrete in static loading up to failure, and therefore, it is sufficient to model how these columns behave. The reduction in the analytical ultimate loads compared to the experimental values ranged from 11% and 16%, while the reduction in the total axial deformation values ranged from 3% to 7%. The yield patterns obtained from the analyzed composite columns under axial compressive stress are comparable to the yield patterns determined from the experimental study.

Index Terms:-

self-compacted, composite column, steel tube, finite element, ANSYS.

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