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Steel and Composite Structures Volume 50, Number 5, March 10 2024 , pages 499-513 DOI: https://doi.org/10.12989/scs.2024.50.5.499 |
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Tests and numerical analysis on octagonal concrete-filled double skinned steel tubular short columns under axial compressio |
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Manigandan R
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| Abstract | ||
| This paper describes the experimental and numerical investigations of octagonal Concrete-Filled Double Skinned Steel Tube (CFDST) short columns under the influence of various internal sizes of the circular and square steel tubes, with constant cross-sectional dimensions of the external octagonal steel tube under concentric loading. The non-linear finite element analysis of octagonal CFDST columns was executed using the ABAQUS to forecast and compare the axial compression behavior influenced by the various sizes of internal circular and square steel tubes. The study shows that the axial compressive strength and ductility of octagonal CFDST columns were significantly influenced by various internal dimensions of the circular and square steel tubes with the strengths of constituent materials. | ||
| Key Words | ||
| ABAQUS; axial response; composite column; finite element analysis; octagonal CFDST column; sandwiched concrete | ||
| Address | ||
| Manigandan R:Department of Civil Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, 602 105, India | ||