A revised BESO method for structures with design-dependent gravity loads

Huang, X and Xie, Y 2010, 'A revised BESO method for structures with design-dependent gravity loads', in Nader Ghafoori (ed.) Challenges, Opportunities and Solutions in Structrual Engineering and Construction, Las Vegas, United States, 22-25 September 2009, pp. 393-398.


Document type: Conference Paper
Collection: Conference Papers

Title A revised BESO method for structures with design-dependent gravity loads
Author(s) Huang, X
Xie, Y
Year 2010
Conference name The Fifth International Structrual Engineering and construction conference (ISEC-5)
Conference location Las Vegas, United States
Conference dates 22-25 September 2009
Proceedings title Challenges, Opportunities and Solutions in Structrual Engineering and Construction
Editor(s) Nader Ghafoori
Publisher Taylor and Francis
Place of publication London, United Kingdom
Start page 393
End page 398
Total pages 6
Abstract The effectiveness and efficiency of the bi-directional evolutionary structural optimization (BESO) method has been demonstrated on the problems of minimizing compliance of structures with f ixed external loads. This paper considers the minimization of the mean compliance of continuum structure subjected to design-dependent gravity loads. Due to the non-monotonous behaviour for this type ofthe optimization problems, the extended BESO method using discrete design variables has difficulty in obtaining convergent solutions for such problems. In this paper, a new BESO method is developed based on the sensitivity number computation utilizing an alternative material interpolation scheme. Several examples are presented to demonstrate the capabilities of the proposed method for achieving convergent optimal solutions for structures with design-dependent gravity loads.
Subjects Structural Engineering
Keyword(s) Structural engineering
Copyright notice © 2010 Taylor & Francis Group
ISBN 9780415568098
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