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

Liang, Qing Quan (2007) Effects of continuum design domains on optimal bracing systems for multistory steel building frameworks. In: 5th Australasian Congress on Applied Mechanics (ACAM 2007), 10-12 Dec 2007, 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.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Publisher does not formally support archiving.
Depositing User: Dr Stephen Liang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 17 Dec 2007 02:05
Last Modified: 02 Jul 2013 22:55
Uncontrolled Keywords: bracing systems, performance-based optimization, topology optimization
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
URI: http://eprints.usq.edu.au/id/eprint/3658

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