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Optimum design of reinforced concrete retaining walls with the flower pollination algorithm

Mergos, P.E. ORCID: 0000-0003-3817-9520 and Mantoglou, F. (2020). Optimum design of reinforced concrete retaining walls with the flower pollination algorithm. Structural and Multidisciplinary Optimization, 61(2), pp. 575-585. doi: 10.1007/s00158-019-02380-x

Abstract

The flower pollination algorithm (FPA) is anefficient metaheuristicoptimizationalgorithm mimickingthe pollinationprocessof flowering species. In this study, FPA is applied, for first time, to the optimum design of reinforced concrete (RC) cantilever retaining walls. It is foundthat FPA offers important savings with respect to conventional design approachesand that it outperformsgenetic algorithm (GA)andthe particle swarm optimization (PSO) algorithm in this designproblem.Furthermore, parameter tuning reveals that the best FPA performance is achieved for switch probability values ranging between 0.4 and 0.7, a population size of 20 individualsand aLévy flightstep sizescale factor of 0.5. Finally, parametric optimum designs show that theoptimumcost of RC retaining walls increases rapidly with the wallheight and smoothly with the magnitude of surcharge loading

Publication Type: Article
Additional Information: This is a post-peer-review, pre-copyedit version of an article published in Structural and Multidisciplinary Optimization. The final authenticated version is available online at: https://doi.org/10.1007/s00158-019-02380-x
Publisher Keywords: Optimization; flower pollination algorithm;reinforced concrete; retaining walls
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Civil Engineering
URI: https://openaccess.city.ac.uk/id/eprint/22619
[img] Text - Accepted Version
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