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Investigation on Cold Formed Steel Channel Section with Curved Flanges Subjected to Axial Compression
In this study, the structural performance of cold-formed steel channel columns with curved flanges was numerically investigated. The elastic analysis was performed using CUFSM software. Both conventional and modified channel sections (curved flanges) were analyzed using ABAQUS, followed by validation of Channel Sections chosen from three different literatures; six samples from Ye et al. (2018a, 2018b), one from Anbarasu (2017) and one Semi Oval Hollow Cross Section proposed by Chen et al. (2018) with different yield stresses, under axial compression with pinned support conditions. The nonlinear stress-strain behaviour of the material and geometrical imperfections was incorporated to study these numerical models. Nominal Strength Design method using American Iron and Steel Institute, AISI-S100–16 and Allowable Stress Design using Indian Standard Code, IS 801–1975 were used to predict the axial strength of the compression members. An empirical equation derived by Parks et al. (1986) using nonlinear, least squares regression analysis for stub columns with unstiffened curved flanges that fail by elastic, local buckling was incorporated in the IS 801–1975 design procedure. The numerical parametric results from ABAQUS and the nominal strength predicted by the standard codal specifications are compared and discussed.
Investigation on Cold Formed Steel Channel Section with Curved Flanges Subjected to Axial Compression
In this study, the structural performance of cold-formed steel channel columns with curved flanges was numerically investigated. The elastic analysis was performed using CUFSM software. Both conventional and modified channel sections (curved flanges) were analyzed using ABAQUS, followed by validation of Channel Sections chosen from three different literatures; six samples from Ye et al. (2018a, 2018b), one from Anbarasu (2017) and one Semi Oval Hollow Cross Section proposed by Chen et al. (2018) with different yield stresses, under axial compression with pinned support conditions. The nonlinear stress-strain behaviour of the material and geometrical imperfections was incorporated to study these numerical models. Nominal Strength Design method using American Iron and Steel Institute, AISI-S100–16 and Allowable Stress Design using Indian Standard Code, IS 801–1975 were used to predict the axial strength of the compression members. An empirical equation derived by Parks et al. (1986) using nonlinear, least squares regression analysis for stub columns with unstiffened curved flanges that fail by elastic, local buckling was incorporated in the IS 801–1975 design procedure. The numerical parametric results from ABAQUS and the nominal strength predicted by the standard codal specifications are compared and discussed.
Investigation on Cold Formed Steel Channel Section with Curved Flanges Subjected to Axial Compression
Structural Integrity
Fonseca de Oliveira Correia, José António (editor) / Choudhury, Satyabrata (editor) / Dutta, Subhrajit (editor) / Arthi, S (author) / Suji, D (author) / Anbarasu, M (author)
International Conference on Advances in Structural Mechanics and Applications ; 2021 ; Silchar, India
Advances in Structural Mechanics and Applications ; Chapter: 20 ; 306-320
Structural Integrity ; 19
2022-06-08
15 pages
Article/Chapter (Book)
Electronic Resource
English
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