Optimization of Mass Concrete Construction Using a Twofold Parallel Genetic Algorithm

This paper presents a solution strategy, based on a parallel Genetic Algorithm (GA), to optimize the construction of massive concrete structures. The optimization process aims at minimizing the construction cost, considering the following design variables: the concrete mixes, the placing temperature...

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Vydané v:Applied sciences Ročník 8; číslo 3; s. 399
Hlavní autori: Rita, Mariane, Fairbairn, Eduardo, Ribeiro, Fernando, Andrade, Henrique, Barbosa, Helio
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Basel MDPI AG 01.03.2018
Predmet:
Concrete construction
Construction costs
Dams
Design
Finite element analysis
Genetic algorithms
Heat
Hydration
mass concrete
numerical modeling
Optimization
parallel Genetic Algorithm
thermo-chemo-mechanical model
Brazil
United States > US
Rio de Janeiro Brazil
ISSN:2076-3417, 2076-3417
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Shrnutí:This paper presents a solution strategy, based on a parallel Genetic Algorithm (GA), to optimize the construction of massive concrete structures. The optimization process aims at minimizing the construction cost, considering the following design variables: the concrete mixes, the placing temperature, the height of the lifts, and the time intervals between placing the lifts. The cracking tendency is taken into account by a penalty scheme imposed to the fitness function of the GA. A thermo-chemo-mechanical model is used to calculate the transient fields of hydration, temperature, stress, strain, and cracking tendency. This model is implemented in a finite element code that is, in turn, parallelized. To demonstrate the efficiency of the proposed methodology, the simulation of the construction of a structure similar to the real thick foundation of an industrial building is presented. It shows that the optimization procedure here presented is feasible and is ready to be used in real engineering applications.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2076-3417
2076-3417
DOI:10.3390/app8030399