Aston Research Explorer
Tran, Tuan D. (2007). Global optimisation of cold-formed steel sections. PhD thesis, Aston University.
|PDF (Global optimisation)|
In this thesis, standard algorithms are used to carry out the optimisation of cold-formed steel purlins such as zed, channel and sigma sections, which are assumed to be simply supported and subjected to a gravity load. For zed, channel and sigma section, the local buckling, distortional buckling and lateral-torsional buckling are considered respectively herein. Currently, the local buckling is based on the BS 5950-5:1998 and EN 1993-1-3:2006. The distortional buckling is calculated by the direct strength method employing the elastic distortional buckling which is calculated by three available approaches such as Hancock (1995), Schafer and Pekoz (1998), Yu (2005). In the optimisation program, the lateral-torsional buckling based on BS 5950-5:1998, AISI and analytical model of Li (2004) are investigated. For the optimisation program, the programming codes are written for optimisation of channel, zed and sigma beam. The full study has been coded into a computer-based analysis program (MATLAB).
|Item Type:||Thesis (PhD)|
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|Uncontrolled Keywords:||Global optimisation, cold-formed steel sections|
|Divisions:||Schools_of_Study > Engineering & Applied Science > Engineering Systems & Management (EAS)|
|Deposited By:||Mrs. Alison Lobo|
|Deposited On:||08 Jul 2011 11:53|
|Last Modified:||24 May 2015 04:47|
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