DEVELOPMENT OF AN AIDING TOOL FOR THE OPTIMAL DETAIL OF ACTIVE REINFORCEMENT USING GENETIC ALGORITHM
O objetivo desse trabalho é apresentar uma ferramenta de apoio ao detalhamento ótimo de
armaduras ativas numa seção de concreto protendido. Para alcançá-lo, a metodologia considerou
os critérios normativos e a tensão requerida na seção mais crítica da viga, buscando minimizar o
volume de aço. A ferramenta foi desenvolvida em MATLAB utilizando o algoritmo genético.
Permite detalhar diferentes modelos de seção, possibilitando novas seções para futuros projetos,
além de auxiliar no tempo de projeto. Ressaltando que o projeto de execução de concreto
protendido não foi automatizado por completo mas já se dá por auxiliar os projetistas para
próximos detalhamentos. Os testes comprovam a eficiência e eficácia do trabalho.
DEVELOPMENT OF AN AIDING TOOL FOR THE OPTIMAL DETAIL OF ACTIVE REINFORCEMENT USING GENETIC ALGORITHM
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DOI: 10.22533/at.ed.1922129119
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Palavras-chave: Concreto protendido; Detalhamento ótimo; Algoritmo Genético.
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Keywords: Prestressed Concrete, Optimal Detailing, Genetic Algorithm
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Abstract:
The aim of this paper is to present the development of an auxiliary tool for the optimal detail of active reinforcement on a prestressed concrete section. To achieve it, the methodology considers normative requisites and the tension required at the most critical section of the beam. The problem of optimization seeks to minimize the volume of steel while satisfying the conditions of minimum cover and spacing between reinforcement cables. Design variables are the number of strands per cable and the position of each cable within cross section. Due to the nature of the variables and the constraints involved, genetic algorithm seems to be the most suitable optimization procedure. Hence, the proposed methodology is implemented using the native implementation of genetic algorithm of MATLAB, a broadly used computer program in academy. The developed tool allows to detail different sections, since it treats the cross section as a general polygon. Thereby, it allows exploitation of new sections for future projects, as well as assisting in the time of design. It is worth mentioning that a complete automated prestressed concrete executive project is still far down the road. Numerical examples are analyzed to demonstrate the efficiency of the presented tool and to illustrate it’s usage in a actual life design process.
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Número de páginas: 15
- Guilherme Coelho Gomes Barros
- Victória Carino Neves
