Session Dates
05 Nov 2014
Abstract
Experimental and numerical results concerning the post-buckling behavior and strength of fixed-ended cold-formed steel lipped channel columns experiencing interaction involving local, distortional and global buckling (i.e., stemming from the closeness between the critical buckling stresses associated with these three buckling mode types), are reported. After briefly addressing the column specimen geometry selection, the paper presents and discusses the results of an experimental investigation carried out at COPPE, Federal University of Rio de Janeiro (UFRJ, Brazil) and involving 16 columns − its output consists of steel material properties, initial imperfection measurements, equilibrium paths and failure loads/modes. Then, some test results are compared with the values yielded by the corresponding ABAQUS shell finite element simulations. Finally, the paper closes with a brief account of the considerations prompted by the available experimental and numerical ultimate load values, concerning the Direct Strength Method (DSM) design of columns affected by triple (local-distortional-global) mode interaction.
Department(s)
Civil, Architectural and Environmental Engineering
Research Center/Lab(s)
Wei-Wen Yu Center for Cold-Formed Steel Structures
Meeting Name
22nd International Specialty Conference on Cold-Formed Steel Structures
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2014 Missouri University of Science and Technology, All rights reserved.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Santos, Eliane S.; Dinis, Pedro Borges; Batista, Eduardo M.; and Camotim, Dinar, "Cold-Formed Steel Lipped Channel Columns Undergoing Local-Distortional-Global Interaction: Experimental and Numerical Investigation" (2014). CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018). 6.
https://scholarsmine.mst.edu/isccss/22iccfss/session02/6
Cold-Formed Steel Lipped Channel Columns Undergoing Local-Distortional-Global Interaction: Experimental and Numerical Investigation
Experimental and numerical results concerning the post-buckling behavior and strength of fixed-ended cold-formed steel lipped channel columns experiencing interaction involving local, distortional and global buckling (i.e., stemming from the closeness between the critical buckling stresses associated with these three buckling mode types), are reported. After briefly addressing the column specimen geometry selection, the paper presents and discusses the results of an experimental investigation carried out at COPPE, Federal University of Rio de Janeiro (UFRJ, Brazil) and involving 16 columns − its output consists of steel material properties, initial imperfection measurements, equilibrium paths and failure loads/modes. Then, some test results are compared with the values yielded by the corresponding ABAQUS shell finite element simulations. Finally, the paper closes with a brief account of the considerations prompted by the available experimental and numerical ultimate load values, concerning the Direct Strength Method (DSM) design of columns affected by triple (local-distortional-global) mode interaction.
