IJMTES – ULTIMATE LOAD OF COLD FORMED STEEL COLUMN UNDER COMPRESSION

Journal Title : International Journal of Modern Trends in Engineering and Science

Paper Title : ULTIMATE LOAD OF COLD FORMED STEEL COLUMN UNDER COMPRESSION

Author’s Name : Vinayak K S | Ajisha R  unnamed

Volume 03 Issue 07 2016

ISSN no:  2348-3121

Page no: 174-177

Abstract – Light gauge steel evolved as a building material in the 1930’s and reached large scale usage only after the Second World WarThis paper describes the results obtained from a finite element investigation into the load capacity of column members of plain channel cross-section, subjected to concentric loading. The main objective of this paper is to provide an efficient and accurate finite element model to understand the behavior of cold-formed steel plain channel columns. A nonlinear finite element model is developed and verified against fixed-ended channel column tests. Geometric and material nonlinearities were included in the finite element model. Stress-strain curves obtained from tests are incorporated into nonlinear finite element model. It is shown that finite element model closely predicted the experimental ultimate load and behaviour of cold formed plain channel column. The column strengths predicted by the finite element analysis are compared with the design column strengths calculated using American specifications for cold-formed steel structures. It is shown that the design strengths calculated from the American specification are generally conservative for fixed-ended plain channel columns.    

Keywords— Light Guage Steel, Finite Element Model, Nonlinear, Plain Channel  

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