Pseudo plastic zone analysis of steel frame structures comprising non-compact sections
Application of `advanced analysis' methods suitable for non-linear analysis and design of steel frame structures permits direct and accurate determination of ultimate system strengths, without resort to simplified elastic methods of analysis and semi-empirical specification equations. However, the application of advanced analysis methods has previously been restricted to steel frames comprising only compact sections that are not influenced by the effects of local buckling. A concentrated plasticity method suitable for practical advanced analysis of steel frame structures comprising non-compact sections is presented in this paper. The pseudo plastic zone method implicitly accounts for the effects of gradual cross-sectional yielding, longitudinal spread of plasticity, initial geometric imperfections, residual stresses, and local buckling. The accuracy and precision of the method for the analysis of steel frames comprising non-compact sections is established by comparison with a comprehensive range of analytical benchmark frame solutions. The pseudo plastic zone method is shown to be more accurate and precise than the conventional individual member design methods based on elastic analysis and specification equations.
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|Item Type:||Journal Article|
|Additional Information:||Compilation and indexing terms, Copyright 2013 Elsevier Inc.
Pseudo plastic zone analysis
|Keywords:||Steel structures, Buckling, Defects, Plasticity, Residual stresses, Structural analysis, Structural frames|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2000 Techno Press|
|Deposited On:||15 Nov 2013 00:13|
|Last Modified:||01 Sep 2015 05:45|
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