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Optimization of Tunnel Reinforcements by Genetic Algorithm with the Aim of Replacing with Fibers | ||
| AUT Journal of Civil Engineering | ||
| مقاله 3، دوره 6، شماره 1، خرداد 2022، صفحه 35-50 اصل مقاله (1.36 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajce.2022.20088.5757 | ||
| نویسندگان | ||
| Mohammad Hossein Taghavi Parsa* 1؛ Hamed Sharifi2؛ Pouya Amirchoupani3 | ||
| 1Civil Group, University of Qom, Qom, Iran. | ||
| 2Esfahan University, Esfahan, Iran. | ||
| 3Faculty of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran. | ||
| چکیده | ||
| In this study, the replacement of fibers with reinforcements of tunnel-reinforced concrete segments has been optimized using the method of the genetic algorithm by five fibers of steel, carbon, aramid, glass, and polypropylene, respectively. As an example, two steps of optimization of the Tehran metro, line seven, have been studied for this purpose. In the first step, the appropriate geometry is selected for the arrangement of the optimized ring reinforcements. The results showed a 62% removal of reinforcements. In the second step, the separated optimal percentages of all five types of fibers and the combination of steel fibers and polypropylene are expressed. Also, for a more accurate simulation of modeling the plastic part of the segment, the results of two methods have been validated, including CDP (concrete damage plasticity) and Brittle Cracking. According to the genetic algorithm, the optimized percentage for steel fibers is 1%, aramid fibers 3%, glass fibers 3%, carbon 1.1%, polypropylene 0.2%, and the composition of steel fibers 1% with 0.1 polypropylene is determined, as well. | ||
| کلیدواژه‌ها | ||
| Optimization؛ Genetic algorithm؛ Tunnel؛ Fiber concrete | ||
| مراجع | ||
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[1] J.A. Barros, Report on design and construction of steel fiber-reinforced concrete elevated slabs, American Concrete Institute, (2015).
[2] J.A. Barros, Report on design and construction of steel fiber-reinforced concrete elevated slabs, American Concrete Institute, (2016).
[3] L. Vandewalle, D. Nemegeer, L. Balazs, B. Barr, J. Barros, P. Bartos, N. Banthia, M. Criswell, E. Denarie, M. Di Prisco, RILEM TC 162-TDF: Test and design methods for steel fibre reinforced concrete-sigma-epsilon-design method-Final Recommendation, Materials and Structures, 36(262) (2003) 560-567.
[4] M. Di Prisco, M. Colombo, D. Dozio, Fibre‐reinforced concrete in fib Model Code 2010: principles, models and test validation, Structural Concrete, 14(4) (2013) 342-361.
[5] D. Moyson, Steel fibre reinforced concrete (SFRC) for tunnel linings, International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, (1995), 137A.
[6] B. Chiaia, A.P. Fantilli, P. Vallini, Combining fiber-reinforced concrete with traditional reinforcement in tunnel linings, Engineering Structures, 31(7) (2009) 1600-1606.
[7] C. Molins, O. Arnau, Experimental and analytical study of the structural response of segmental tunnel linings based on an in situ loading test, Tunnelling and Underground Space Technology, 26(6) (2011) 764-777.
[8] A. De la Fuente, P. Pujadas, A. Blanco, A. Aguado, Experiences in Barcelona with the use of fibres in segmental linings, Tunnelling and Underground Space Technology, 27(1) (2012) 60-71.
[9] J. Li, H. Li, G. Ma, Y. Zhou, Assessment of underground tunnel stability to adjacent tunnel explosion, Tunnelling and Underground Space Technology, 35 (2013) 227-234.
[10] L.P. Chaves, J. Cunha, Design of carbon fiber reinforcement of concrete slabs using topology optimization, Construction and Building Materials, 73 (2014) 688-698.
[11] G. Tiberti, F. Minelli, G. Plizzari, Reinforcement optimization of fiber reinforced concrete linings for conventional tunnels, Composites Part B: Engineering, 58 (2014) 199-207.
[12] S. Koneshwaran, D.P. Blast response of segmented bored tunnel Thambiratnam, C. Gallage, using coupled SPH–FE method, Structures, 2 (2015), 58-71.
[13] A. Caratelli, A. Meda, Z. Rinaldi, S. Spagnuolo, G. Maddaluno, Optimization of GFRP reinforcement in precast segments for metro tunnel lining, Composite Structures, 181 (2017) 336-346.
[14] B. Luccioni, F. Isla, R. Codina, D. Ambrosini, R. Zerbino, G. Giaccio, M.C. Torrijos, Experimental and numerical analysis of blast response of High Strength Fiber Reinforced Concrete slabs, Engineering structures, 175 (2018) 113-122.
[15] E.A. Alwesabi, B.A. Bakar, I.M. Alshaikh, H.M. Akil, Impact resistance of plain and rubberized concrete containing steel and polypropylene hybrid fiber, Materials Today Communications, 25 (2020) 101640.
[16] O. Tengilimoglu, U. Akyuz, Experimental study on hybrid precast tunnel segments reinforced by macro-synthetic fibres and glass fibre reinforced polymer bars, Tunnelling and Underground Space Technology, 106 (2020) 103612.
[17] Z. Guo, C. Zhuang, Z. Li, Y. Chen, Mechanical properties of carbon fiber reinforced concrete (CFRC) after exposure to high temperatures, Composite Structures, 256 (2021) 113072.
[18] C. Mougeotte, P. Carlucci, S. Recchia, H. Ji, Novel approach to conducting blast load analyses using Abaqus/Explicit-CEL, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ, (2010).
[19] ASTM A820, Standard specification for steel fibers for fiber-reinforced concrete, American Society for Testing and Materials (ASTM) Committee, West Conshohocken, PA, USA, (2006).
[20] ACI 544.1 R-96, State-of-the-art report on fibre reinforced concrete, Farmington Hills, MI, USA, (2002).
[21] ASTM C1116, Standard specification for fiber-reinforced concrete and shotcrete, West Conshohocken, PA, United States, (2003).
[22] P. Hannant, Fibre cements and fibre concretes, (1978).
[23] R. Gettu, B. Barragán, T. García, G. Ramos, C. Fernández, R. Oliver, Steel fiber reinforced concrete for the Barcelona metro line 9 tunnel lining, in: Proc. of the 6th RILEM Symposium on FRC, Varenna, Italy, RILEM PRO, (2004), 141-156.
[24] M.J. Avanaki, A. Hoseini, S. Vahdani, A. de la Fuente, Numerical-aided design of fiber reinforced concrete tunnel segment joints subjected to seismic loads, Construction and Building Materials, 170 (2018) 40-54. | ||
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