Analisis Perilaku Lentur Balok Beton Bertulang Geopolymer menggunakan Metode Elemen Hingga
DOI:
https://doi.org/10.55606/jurritek.v4i2.6170Keywords:
Flexural Behavior, Reinforced Concrete Beam, Ordinary Portland Cement Concrete, Geopolymer Concrete, Finite Element MethodAbstract
This study analyzes the flexural behavior of reinforced geopolymer concrete beams through numerical simulation based on the Finite Element Method (FEM) using ANSYS software, comparing it with conventional reinforced concrete beams. The background of this research focuses on the need for environmentally friendly construction materials, considering the high CO₂ emissions from Portland cement production. The numerical model was developed based on parameters and loading schemes from previous experimental studies, utilizing SOLID65 elements for concrete, LINK180 for steel reinforcement, and SOLID185 for supports. Simulation results show that the flexural behaviour of geopolymer beams is comparable to conventional beams in terms of load-deflection relationships, flexural capacity, and crack patterns, with deviations from experimental data generally below 10%. The patterns and propagation of cracks also exhibited similarities, starting from the tensile zone at mid-span. Furthermore, the analysis demonstrates consistency with the analytical approach based on SNI 2847:2019. This research supports the validity of using geopolymer concrete as a sustainable structural material alternative and shows that the FEM numerical method is effective in evaluating the flexural performance of concrete structural elements.
Downloads
References
Abraham, R., Raj, D. S., & Abraham, V. (2013). Strength and behaviour of geopolymer concrete beams. International Journal of Innovative Research in Science, Engineering and Technology, 2, 159–166.
Andrew, R. M. (2018). Global CO₂ emissions from cement production. Earth System Science Data, 10(1), 195–217.
Celik, A. I., Ozbayrak, A., Sener, A., & Acar, M. C. (2022). Numerical analysis of flexural and shear behaviors of geopolymer concrete beams. Journal of Sustainable Construction Materials and Technologies, 7(2), 70–80. https://doi.org/10.47481/jscmt.1116561
Dattatreya, J. K., Rajamane, N. P., Sabitha, D., & Nataraja, M. C. (2011). Flexural behaviour of reinforced geopolymer concrete beams. International Journal of Civil and Structural Engineering, 2(1), 138–159.
Felippa, C. A. (2016). Introduction to finite element methods (ASEN5007) [Course material].
Irmawaty, R., Fakhruddin, & Gosal, A. O. (2021). Perkuatan lentur balok beton bertulang dengan mortar geopolimer. Prosiding KoNTekS 15, Semarang.
Kumaravel, S., Thirugnanasambandam, S., & Jeyasehar, C. A. (2013). Flexural behaviour of low calcium fly ash based geopolymer concrete beams. International Journal of Engineering & Applied Sciences, 5(1), 24–31.
Nawy, E. G. (1998). Beton bertulang: Suatu pendekatan dasar. Bandung: PT Refika Aditama.
Nawy, E. G. (2009). Reinforced concrete: A fundamental approach (6th ed.). Upper Saddle River, NJ: Prentice Hall.
Ojha, P. N., Singh, B., Trivedi, A., Singh, P., Singh, A., & Pede, C. (2023). Short-term mechanical performance and flexural behavior of reinforced slag-fly ash-based geopolymer concrete beams in comparison to OPC-based concrete beams. Research on Engineering Structures and Materials, 9(1), 31–51. https://doi.org/10.17515/resm2022.515me0902
Park, R., & Pauley, T. (1974). Reinforced concrete structures. New York: John Wiley & Sons.
SNI 2847:2013. (2013). Persyaratan beton struktural untuk bangunan gedung. Jakarta: Badan Standarisasi Nasional.
Sonief, A. (2005). Diktat metode elemen hingga. Malang: Universitas Brawijaya.
Sumajouw, D. M. J., & Dapas, S. O. (2013). Elemen struktur beton bertulang geopolymer. Yogyakarta: Penerbit ANDI.
Sumajouw, D. M. J., & Rangan, B. V. (2006). Low-calcium fly ash-based geopolymer concrete: Reinforced beams and columns (Ph.D. thesis). Curtin University of Technology, Perth, Australia.
Tjitradi, D., Eliatun, E., & Taufik, T. (2017). 3D ANSYS numerical modeling of reinforced concrete beam behavior under different collapsed mechanisms. International Journal of Mechanics and Applications, 7(1), 14–23. https://doi.org/10.5923/j.mechanics.20170701.02
Warner, R. F., Rangan, B. V., Hall, A. S., & Faulkes, K. A. (1999). Concrete structures. Melbourne: Longman.
Whitney, C. S. (1937). Design of reinforced concrete members under flexure or combined flexure and direct compression. ACI Journal (March–April). Reprinted in: Jirsa, J. O. (2004). Landmark series. Concrete International (May).
Wibowo, Y. N., Piscesa, B., & Tajunnisa, Y. (2022). Numerical investigation of geopolymer reinforced concrete beams under flexural loading using finite element analysis. Journal of Civil Engineering, 37(1), 27–32.
Wong, F. T. (2021). Pengantar metode elemen hingga untuk analisis struktur: Teori, perumusan, implementasi komputer, dan aplikasi (Ed. 1, Cet. 1). Depok: Rajawali Pers.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 JURAL RISET RUMPUN ILMU TEKNIK
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
_001.jpg)
