Multicriteria decision-making method applied to optimized reinforced concrete, steel and wood beams

Moacir Kripka, Karol Mezzomo, Zacarias Chamberlain Pravia

Resumo


Optimization techniques have been increasingly used to obtain structures of lower cost or weight. However, the result obtained depends on the choice of materials. This can be based on factors such as cost, performance, and environmental impacts, as well as subjective aspects such as the cultural issue. This work adopts a multicriteria decision method to compare optimized reinforced concrete, steel and wood beams to subsidize the choice of the best material. The criteria adopted were weight, height, cost, environmental impact and culture. For this analysis, beams of the three materials were optimized to minimize cost and impact, considering the same loading and spans. The results were evaluated using the Analytical Hierarchical Decision Method (AHP). It was observed a great influence of cost and culture in the choice of a material favouring the wooden beam for the smallest span and the reinforced concrete beam for the largest span studied.

Palavras-chave


Structures. Beams. Optimization. Decision making. AHP method

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Referências


Associação Brasileira de Normas Técnicas (2014). NBR 6118: Projeto de estruturas de concreto – Procedimento. Rio de Janeiro.

Associação Brasileira de Normas Técnicas (2008). NBR 8800: Projeto de estruturas de aço e de estruturas mistas de aço e concreto de edifícios. Rio de Janeiro, 2008.

Associação Brasileira de Normas Técnicas (2008). NBR 7190: Projeto de estruturas de madeira. Rio de Janeiro, 2008.

Dede, T., Kripka, M., Togan, V., Yepes, V., & Rao, R.V. (2019). Usage of Optimization Techniques in Civil Engineering During the Last Two Decades. Cur Trends Civil & Struct Eng. 2(1): 2019. CTCSE.MS.ID.000529

Drehmer, G. A.(2005). Otimização de estruturas metálicas formadas por perfis “I” soldados. M.Sc. Thesis, Universidade de Passo Fundo.

Garcia-Segura, T., Yepes, V., Marti, J.V. & Alcala, J. (2014) Optimization of concrete I-beams using a new hybrid glowworm swarm algorithm. Lat. Am. J. Solids Struct, 11 (7), 1190-1205.

Hoose, A., Yepes, V. & Kripka, M. (2021). Selection of Production Mix in the Agricultural Machinery Industry considering Sustainability in Decision Making. Sustainability, 13, (in press)

Kripka, M, Medeiros, G.F., Fraga, J.L.T. & Marosin, P.R. (2014). Minimizing the environmental impact of R-C structural elements. In: Rodrigues et al. (Org.). Engineering Optimization 2014. 01 ed.London: CRC Press, 01: pp. 727-730.

Kripka, M., Yepes, V. & Milani, C.J. (2019). Selection of sustainable short-span bridge design in Brazil. Sustainability, 11, 1307.

Le.e D., Lee. D., Lee. M, Kim. M & Kim T. (2020). Analytic Hierarchy Process-Based Construction Material Selection for Performance Improvement of Building Construction: The Case of a Concrete System Form. Materials (Basel). 13(7), 1738. doi: 10.3390/ma13071738

Magnan, M. B. (2019). Otimização à flexão biaxial de elementos em madeira laminada colada. B.Sc. Thesis, Universidade de Passo Fundo.

Merta, I., Kravanja, S. & Klansek, U. (2008). Optimization based cost comparison between reinforced concrete and steel beams. High Performance Structures and Materials IV, 97, 449-456.

Medeiros, G.F. & Kripka, M. (2013). Structural optimization and proposition of pre-sizing parameters for beams in reinforced concrete buildings. Computers and Concrete, 11, 253-270.

Ozimboski, J. M., Pravia, Z. M. C. & Kripka, M. (2020). Optimization of Reinforced Concrete Beams and Steel Beams: A Comparative Study. International Journal of Structural Glass and Advanced Materials Research, 4, 160-167.

Pagnussat, R & Kripka, M. (2010). Parâmetros para o dimensionamento otimizado de vigas de concreto armado. Téchne, jul.

Rahmanian, I., Lucet, Y. & Tesfamariam, S. (2014). Optimal design of reinforced concrete beams: A review. Computers and Concrete, 13 (4), 457-485.

Saaty, T.L. (2008). Decision Making with the Analytic Hierarchy Process. Int. J. Serv. Sci., 1, 83–98.

Santoro, J. F. & Kripka, M. (2016). Determinação das Emissões de Dióxido de Carbono das Matérias Primas do Concreto Produzido na Região Norte do Rio Grande do Sul. Ambiente Construído, 16 (2), 35-49.

Santoro, J. F. & Kripka, M. (2020). Minimizing environmental impact from optimized sizing of reinforced concrete elements. Computers and Concrete, 25, 111-118.

Tormen, A.F., Pravia, Z.M.C., Ramires, F.B. & Kripka, M. (2020). Optimization of steel-concrete composite beams considering cost and environmental impact. Steel Compos. Struct. 34, 409–421.

Variani, L.; Kripka, M. (2021). Método de decisão multicritério aplicado à seleção de materiais estruturais considerando o impacto ambiental. Revista AIDIS de ingeniería y ciencias ambientales, 14 (1), 462-476.

Viholainen, N., Franzini, F., Lähtinen, K., Nyrud, A.Q., Widmark, C., Hoen, H.F. & Toppinen, A. (2020). Citizen views on wood as a construction material: results from seven European countries. Canadian Journal of Forest Research. 51(5), 647-659.

Zula,T. & Kravanja,S. (2018). Optimization of the sustainability profit generated by the production of beams. 1st International Conference on Technologies & Business Models for Circular Economy, 5th-7th september 2018, Portorož, Slovenia.




DOI: https://doi.org/10.5585/exactaep.2022.22138

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