Bridge topology optimisation with stress, displacement and frequency constraints

Guan, H, Chen, Y, Loo, Y, Xie, Y and Steven, G 2003, 'Bridge topology optimisation with stress, displacement and frequency constraints', Computers and Structures, vol. 81, no. 3, pp. 131-145.

Document type: Journal Article
Collection: Journal Articles

Title Bridge topology optimisation with stress, displacement and frequency constraints
Author(s) Guan, H
Chen, Y
Loo, Y
Xie, Y
Steven, G
Year 2003
Journal name Computers and Structures
Volume number 81
Issue number 3
Start page 131
End page 145
Total pages 15
Publisher Pergamon
Abstract The principal stress based evolutionary structural optimisation method is presented herein for topology optimisation of arch, tied arch, cable-stayed and suspension bridges with both stress and displacement constraints. Two performance index formulas are developed to determine the efficiency of the topology design. A refined mesh scheme is proposed to improve the details of the final topology without resorting to the complete analysis of a finer mesh. Furthermore, cable-supported bridges are optimised with frequency constraint incorporating the "nibbling" technique. The applicability, simplicity and effectiveness of the method are demonstrated through the topology optimisation of the four types of bridges.
Subject Structural Engineering
Keyword(s) bridge structures
design constraints
topology optimisation
DOI - identifier 10.1016/S0045-7949(02)00440-6
Copyright notice © 2003 Elsevier Science Ltd. All rights reserved
ISSN 0045-7949
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