Analysis and design of multiple beams of a road bridge using prestressed concrete
DOI:
https://doi.org/10.33448/rsd-v11i3.26752Keywords:
Prestressed concrete; Bridges; Multiple beams.Abstract
In the context of road projects, the construction of bridges represents one of the biggest costs. Thus, the search for more economically viable solutions that reduce the use of materials and use them efficiently is essential. In this sense, the application of prestressing to such structures stands out, because this technique allows the maximum exploitation of the tensile strength of steel and the compressive strength of concrete. This work consists in the elaboration of a structural project of the multiple beams of the deck of a bridge using prestressed concrete. The design calculation ware developed using Mathcad 15.0 software – which, together with auxiliary software, allowed determining the forces acting on each beam of the deck. With these values, the most requested beam was determined, which was dimensioned in the rest of the project. Subsequently, the minimum prestressing effort that must act on the structure was determined. Then, through the positioning of the equivalent prestressing cable, the immediate and progressive prestressing losses were calculated. At the end of the project, the situations of the ultimate fatigue and bending limit states of the active reinforcement were verified and the service limit state of excessive deformations was also verified. The results allowed to conclude that the use of prestressing contributed to reduce the amount of steel used in the structure, besides reducing the deformations and also improving the behavior of the beam to the effects of fatigue.
References
ABNT. (2003) – Associação Brasileira de Normas Técnicas. NBR 7187:2003 – Projeto de pontes de concreto armado e de concreto protendido - Procedimento.
ABNT. (2003) – Associação Brasileira de Normas Técnicas. NBR 8681:2003 – Ações e segurança nas estruturas - Procedimento.
ABNT. (2008) – Associação Brasileira de Normas Técnicas. NBR 7483:2008 – Cordoalha de aço para estruturas de concreto protendido - Especificação.
ABNT. (2013) – Associação Brasileira de Normas Técnicas. NBR 7188:2013 – Carga móvel rodoviária de pedestres em pontes, viadutos, passarelas e outras estruturas.
ABNT. (2014) – Associação Brasileira de Normas Técnicas. NBR 6118:2014 – Projeto de estruturas de concreto – procedimento.
Alcalá, J., Gonzalez-Vidoza, F., Martí, J. V. & Yepes, V. (2018). Embodied Energy Optimization of Prestressed Concrete Slab Bridge Decks. Technologies, 43 (6).
Bonopera, M., Chang, K. C., Chen, C. C., Sung, Y. C. & Tullini, N. (2019). Experimental study on the fundamental frequency of prestressed concrete bridge beams with parabolic unbonded tendons. Journal of Sound and Vibration, 455, 150-160.
Catálogo Freyssinet Brasil. (2018). Sistema Freyssinet para protensão e estais.
Cholfe, L. (2018). Concreto protendido: teoria e prática. São Paulo: Oficina de Textos, 2 ed.
Flick, U. (2009). Desenho da pesquisa qualitativa. Artmed.
García-Segura, T. & Yepes, V. (2016). Multiobjective optimization of post-tensioned concrete box-girder road bridges considering cost, CO2 emissions, and safety. Engineering Structures, 125, 325–336.
García-Segura, T., Yepes, V. & Frangopol, D.M. (2017). Multi-objective design of post-tensioned concrete road bridges using artificial neural networks. Structural and Multidisciplinary Optimization, 56, 139–150.
Gonzalez-Vidosa, F., Gonzalez, J. A. & Ferrer, F. N. (2020). On the structural design of characteristic decks for three-span postensioned road flyovers. WIT Transactions on The Built Environment, 196, 169 – 180.
Hemalatha, K., James, C., Natrayan, L. & Swamynadh, V. (2021). Analysis of RCC T-beam and prestressed concrete box girder bridges super structure under different span conditions. Materials Today Proceedings, 37 (2), 1507-1516.
Malhotra, N., Rocha, I., & Laudisio, M.C. (2005). Introdução à Pesquisa de Marketing. Pearson Prentice Hall.
Martí, J. V., García-Segura, T. & Yepes, V. (2016). Structural design of precast-prestressed concrete U-beam road bridges based on embodied energy. Journal of Cleaner Production, 120, 231–240.
Martí, J. V., Gonzalez-Vidosa, F., Yepes, V. & Alcalá, J. (2013). Design of prestressed concrete precast road bridges with hybrid simulated annealing. Engineering Structures, 48, 342–352.
Nour, N. A., Vié, D., Chateauneufa, A., Amziane, S. & Kallassy, A. (2021). Dimensioning of partially prestressed concrete beams, optimization of T-shaped section with heels. Engineering Structures, 235, 112054.
Penadés-Plà, V., García-Segura, T., Martí, J. V. & Yepes, V. (2018). An Optimization-LCA of a Prestressed Concrete Precast Bridge. Sustainability, 10, 685.
Penadés-Plà, V., Martí, J. V., García-Segura, T. & Yepes, V. (2017). Life-cycle assessment: A comparison between two optimal post-tensioned concrete box-girder road bridges. Sustainability, 9, 1864.
Pereira, A. S., Shitsuka, D. M., Parreira, F. J. & Shitsuka, R. (2018). Metodologia da pesquisa científica. UAB/NTE/UFSM.
Pfeil, W. (1984). Concreto protendido, 1: Introdução. Rio de Janeiro: LTC – Livros Técnicos e Científicos Editora S.A.
Silva, N. G. da, Souza, O. L. de C. & Campos, C. M. de O. (2020). Análise de confiabilidade em vigas de concreto protendido com cabos não aderentes em conformidade com a NBR 6118-2014: estudo paramétrico para razões de carga e resistência a compressão do concreto. Research, Society and Development, 9 (10), e7239109172.
Spernau, W. (2012). Apostila de Pontes. Universidade Federal de Santa Catarina. Centro Tecnológico, Departamento de Engenharia Civil.
Yepes, V., Martí, J. V. & García-Segura, T. (2015). Cost and CO2 emission optimization of precast-prestressed concrete U-beam road bridges by a hybrid glowworm swarm algorithm. Automation in Construction, 49, 123–134.
Yepes, V., Martí, J. V. & García-Segura, T. (2017). Design optimization of precast-prestressed concrete road bridges with steel fiber-reinforcement by a hybrid evolutionary algorithm. International Journal of Computational Methods and Experimental Measurements, 5 (2), 179-189.
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Copyright (c) 2022 João Marcos da Silva; Douglas Mateus de Lima; Iálysson da Silva Medeiros; Matheus Alves Pereira; Pablo Aníbal López-Yánez
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