1. Comparative Study of Analytical Methods for Buckling Behavior of Cold-Formed Purlins.
- Author
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You, J. H. and Wu, Q. L.
- Subjects
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NONLINEAR analysis , *BENDING moment , *MECHANICAL buckling , *STRUCTURAL engineers , *COMPARATIVE studies , *STRUCTURAL engineering - Abstract
The direct strength method (DSM) has become an alternative to the effective width method (EWM) to compute the bending moment capacity of cold-formed channel sections. The traditional EWM examines the nominal moment capacity by the PURLIN program. DSM uses a signature curve from tests on many Australian channel sections to obtain design moment capacity for local and distortional buckling modes. Moreover, the non-linear analysis performed by Strand7 will be compared with the current DSM curve. In general, these comparisons of results are in good agreement: the THIN-WALL program results and the linear static analysis results in Strand7; the moment capacity calculated by the PURLIN program (EWM) and the DSM curve in the local buckling mode; the non-linear analysis results in Strand7 and the DSM curve for each buckling mode. The outcome of this study will benefit structural engineers by providing them with design methods analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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