Effects of continuum design domains on optimal bracing systems for multistory steel building frameworks

Paper


Liang, Qing Quan. 2007. "Effects of continuum design domains on optimal bracing systems for multistory steel building frameworks." Veidt, Martin, Albermani, Faris, Daniel, Bill, Griffiths, John, Hargreaves, Doug, McAree, Ross, Meehan, Paul and Tan, Andy (ed.) 5th Australasian Congress on Applied Mechanics (ACAM 2007). Brisbane, Australia 10 - 12 Dec 2007 Sydney, Australia.
Paper/Presentation Title

Effects of continuum design domains on optimal bracing systems for multistory steel building frameworks

Presentation TypePaper
Authors
AuthorLiang, Qing Quan
EditorsVeidt, Martin, Albermani, Faris, Daniel, Bill, Griffiths, John, Hargreaves, Doug, McAree, Ross, Meehan, Paul and Tan, Andy
Journal or Proceedings TitleProceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007)
Journal Citation2, pp. 794-799
Number of Pages6
Year2007
Place of PublicationSydney, Australia
ISBN0858258625
Web Address (URL) of Paperhttp://www.acam2007.eventplanners.com.au/
Conference/Event5th Australasian Congress on Applied Mechanics (ACAM 2007)
Event Details
5th Australasian Congress on Applied Mechanics (ACAM 2007)
Event Date
10 to end of 12 Dec 2007
Event Location
Brisbane, Australia
Abstract

[Abstract]: This paper investigates the effects of continuum design domains on the layouts and performance of optimal bracing systems for multistory steel building frameworks under lateral loads using the performance-based optimization (PBO) technique. In the present method, an unbraced steel framework is initially designed for strength using standard steel sections from databases. A continuum structure is then structurally added to the framework to stiffen the framework. Based on system performance criteria, underutilized finite elements are gradually removed from the continuum design domain to obtain optimal bracing systems for the steel framework. The PBO technique is employed to generate optimal bracing systems for 12-story steel building frameworks braced with different continuum design domains under multiple lateral loads. The performance of optimal bracing systems produced is evaluated using a performance index.

Keywordsbracing systems, performance-based optimization, topology optimization
ANZSRC Field of Research 2020400510. Structural engineering
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Byline AffiliationsDepartment of Agricultural, Civil and Environmental Engineering
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