Numerical Study on the Various Profile Sections of Concrete Filled Steel Tubular Columns Under Compression
DOI:
https://doi.org/10.56748/ejse.234083Keywords:
Axial Load, Concrete filled steel tube (CFST), Unified formula, Numerical Analysis, ring confinement., ABAQUSAbstract
The axial load-carrying capacity for a wide range of short concrete-filled steel tubular (CFST) members having different section profiles is evaluated in the presented work. A numerical study has been carried out through Finite-Element based demonstration and it has been accomplished in the ABAQUS package for relevancy of analytically predicted axial load carrying capacity by unified formula as suggested by Yu M. et al. (2010). To validate the results from the unified formula and the experimentally available literature, finite element-based models for hollow and solid sections of CFST columns with circular, octagonal, and square section profiles have been generated. A total of 31 hollow and 24 solid circular columns, 9 hollow, and 9 solid octagonal columns, and in the last 9 hollows and 38 solid square CFST columns are examined for the persistence of the results. After evaluation of obtained results from the modeling existing results are validated, and it is found that the proposed unified formula predicts satisfactory results when compared with the result of established models. Further, it is concluded that displacement in the direction of applied load is not uniform throughout the length of CFST columns thereby using the ring confinement technique for the region of applied force may be reasonable.
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Copyright (c) 2023 VINAY KUMAR SINGH, Pramod Kumar Gupta, S M Ali Jawaid
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