Optimal topology design of bracing systems for multi-story steel frames
Article
Article Title | Optimal topology design of bracing systems for multi-story steel frames |
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ERA Journal ID | 36383 |
Article Category | Article |
Authors | Liang, Qing Quan (Author), Xie, Yi Min (Author) and Steven, Grant P. (Author) |
Journal Title | Journal of Structural Engineering |
Journal Citation | 126 (7), pp. 823-829 |
Number of Pages | 24 |
Year | 2000 |
Place of Publication | New York, USA |
ISSN | 0733-9445 |
1943-541X | |
Digital Object Identifier (DOI) | https://doi.org/10.1061/(ASCE)0733-9445(2000)126:7(823) |
Web Address (URL) | http://ascelibrary.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JSENDH000126000007000823000001&idtype=cvips&prog=normal |
Abstract | This paper presents a performance-based optimization method for optimal topology design of bracing systems for multistory steel building frameworks with overall stiffness constraint under multiple lateral loading conditions. Material removal criteria are derived by undertaking a sensitivity analysis on the mean compliance of a structure with respect to element removal. A performance index is proposed to evaluate the performance of resulting bracing systems in the optimization process. Tn the proposed method, unbraced frameworks are initially designed under strength constraints using commercial standard steel sections from databases. The optimal topology of a bracing system for the multistory steel building framework is then generated by gradually removing inefficient materials from a continuum design domain that is used to stiffen the framework until the performance of the bracing system is maximized. Two design examples are provided to illustrate the effectiveness of the performance-based design optimization method proposed for the conceptual layout design of lateral bracing systems for multistory steel building frameworks. |
Keywords | Bracing systems, finite element analysis, framworks, performance-based optimization, topology optimization |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Western Sydney |
Victoria University of Technology | |
University of Sydney |
https://research.usq.edu.au/item/9y50q/optimal-topology-design-of-bracing-systems-for-multi-story-steel-frames
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