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A guided evolution strategy for discrete sizing optimization of space steel frames
Date
2023-08-01
Author
Korucu, Aytaç
Hasançebi, Oğuzhan
Metadata
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In this paper, a new design-driven hybrid optimization algorithm called guided evolution strategy (GES) is proposed for a reliable and rapid optimum design of space steel frames. The rationale behind the proposed GES algorithm is to improve convergence characteristics of the evolution strategies (ESs) optimization method by guiding search process according to the satisfaction/violation of strength constraints in a previous design. This is referred to as guided mutation, which is introduced as an auxiliary tool to a stochastic mutation scheme for accelerating the convergence speed of the optimization algorithm. The efficiency of the GES algorithm is investigated and quantified using design examples where sizing optimization of two space steel frames are achieved under strength and displacement constraints imposed according to ANSI/AISC 360-10 (Specification for structural steel buildings, ANSI/AISC 360-10, Illinois, 2010) and ASCE/SEI 7-10 (Minimum design loads for buildings and other structures, ASCE/SEI 7-10, Reston, 2010) design specifications. The solutions produced to these design examples with the GES algorithm are compared to those of some selected metaheuristic search techniques in terms of accuracy of the obtained solutions as well as speed of convergence to the optimum designs. It is shown that the GES algorithm has improved search abilities with respect to other employed techniques.
Subject Keywords
Design-driven search methods
,
Discrete sizing optimization
,
Guided evolution strategy
,
Metaheuristic search techniques
,
Space steel frames
,
Structural optimization
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85167414702&origin=inward
https://hdl.handle.net/11511/105048
Journal
Structural and Multidisciplinary Optimization
DOI
https://doi.org/10.1007/s00158-023-03640-7
Collections
Department of Civil Engineering, Article
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BibTeX
A. Korucu and O. Hasançebi, “A guided evolution strategy for discrete sizing optimization of space steel frames,”
Structural and Multidisciplinary Optimization
, vol. 66, no. 8, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85167414702&origin=inward.