Optimal Layout of Bridge Trusses by Genetic Algorithms

In this paper we present an approach to the layout and shape‐optimization problem of bridge truss structures using genetic algorithms. The objective is to find an optimal layout design that will have minimum weight or material volume, subject to performance constraints related to member stresses, jo...

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Bibliographic Details
Published inComputer-aided civil and infrastructure engineering Vol. 13; no. 4; pp. 247 - 254
Main Authors Soh, Chee-Kiong, Yang, Jiaping
Format Journal Article
LanguageEnglish
Published Oxford, UK and Boston, USA Blackwell Publishers Inc 01.07.1998
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ISSN1093-9687
1467-8667
DOI10.1111/0885-9507.00103

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Summary:In this paper we present an approach to the layout and shape‐optimization problem of bridge truss structures using genetic algorithms. The objective is to find an optimal layout design that will have minimum weight or material volume, subject to performance constraints related to member stresses, joint displacements, and member buckling. An automated two‐stage optimization search process, which integrates structural analysis by finite‐element method, genetic algorithms, and cognitive topology patterns (domain knowledge), is developed to solve the optimal problem. Two examples concerning bridge truss structure are investigated to demonstrate the effectiveness of the proposed method in solving these layout‐optimization problems.
Bibliography:istex:3557886BEE3266A521DBE4918F8078F8E01EECD4
ark:/67375/WNG-BM1MQ275-G
ArticleID:MICE103
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1093-9687
1467-8667
DOI:10.1111/0885-9507.00103