Optimization of Glulam Regular Double-Tapered Beams for Agroforestry Constructions
Source abstract
Abstract
This paper addresses the lack of attention paid by the scientific community to the optimization of timber structures, specifically in the context of large-span agro-industrial constructions. The study focuses on the optimization of a three-dimensional roof composed of GL32h glulam regular double-tapered beams and purlins. Firstly, MATLAB was employed to develop a calculation software and then run the proposed optimization model based on genetic algorithms, in order to optimize the different geometries of the construction elements based on cost, as well as the optimum arrangement of the purlins and the number of beams. Moreover, statistical analyses were carried out on more than 200 optimization data points to uncover the influence of different variables in the optimization process. It was found that the snow load and span have a significant influence on the prediction of the height and width of beams and purlins, as well as the purlin spacing; while, as expected, the roof length also influences the optimal number of beams. All these findings could promote the use of timber structures; thus, achieving more sustainable and efficient construction practices.
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Research context
OpenAlex topics: Textile materials and evaluations · Tree Root and Stability Studies · Forest Biomass Utilization and Management
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Mechanical and Fluid Engineering Research Group, Department of Forest and Agricultural Engineering, School of Agricultural Engineering, University of Extremadura, Av. Adolfo Suarez s/n, 06071 Badajoz, Spain
Forest Research Group, Department of Forest and Agricultural Engineering, Universitary Center of Plasencia, University of Extremadura, Av. Virgen del Puerto 2, 10600 Plasencia, Spain
Funding
European Regional Development Fund of the European Union
References (37)
Show source-provided references
1. Architectural Structures of Glued Laminated Wood
2. Forest and Wood Products Research and Development Corporation (2004). The Environmental Properties of Timber, Australian Government. Summary Report.
3. Dupraz, P.-A., Mooser, M., and Pflug, D. (2009). Dimensionnement des Structures en Bois: Aide au Calcul Basé Sur la Norme SIA 265 “Constructions en Bois”, PPUR Presses Polytechniques. (In French).
4. United States Environmental Protection Agency (2006). Solid Waste Management and Greenhouse Gases: A Life-Cycle Assessment of Emissions and Sinks.
5. Weight Optimization of Plane Trusses10.1061/JSDEAG.0003790 ↗
6. Weight Optimization of Plane Trusses—Discussion
7. Computer Aided Design of Concrete Structures Using Isoparametric Finite Elements and Non-Linear Optimization
8. Steel Truss Optimization Using Genetic Algorithms and FEA10.1016/j.protcy.2013.12.496 ↗
9. Optimal Design of Long-Span Steel Portal Frames Using Fabricated Beams10.1016/j.jcsr.2014.10.010 ↗
10. Optimal Design of Beam-Column Connections of Plane Steel Frames Using the Component Method10.1590/1679-78254247 ↗
11. Dzwierzynska, J., and Lechwar, P. (2022). Algorithmic-Aided Approach for the Design and Evaluation of Curvilinear Steel Bar Structures of Unit Roofs. Materials, 15.10.3390/ma15103656 ↗
12. Šilih, S., Kravanja, Z., and Kravanja, S. (2022). The MINLP Approach to Topology, Shape and Discrete Sizing Optimization of Trusses. Appl. Sci., 12.10.3390/app12031459 ↗
13. Dasari, S.K., Fantuzzi, N., Trovalusci, P., Panei, R., and Pingaro, M. (2023). Optimal Design of a Canopy Using Parametric Structural Design and a Genetic Algorithm. Symmetry, 15.10.3390/sym15010142 ↗
14. He, J., Lin, S., Li, Y., Dong, X., and Chen, S. (2022). Genetic Algorithm for Optimal Placement of Steel Plate Shear Walls for Steel Frames. Buildings, 12.10.3390/buildings12060835 ↗
15. Optimization Design of Reduced Beam Section Using Genetic Algorithm10.1007/s13296-022-00609-y ↗
16. Optimal Design of Failure Mode Control for Semi-Rigid Steel Frame Based on Elitist Retained Genetic Algorithm10.1007/s12205-022-1662-4 ↗
17. Cost Optimization of RCC Column Using Discrete Optimisation Method10.1016/j.matpr.2021.09.137 ↗
18. Genetic Algorithm Using Probabilistic-Based Natural Selections and Dynamic Mutation Ranges in Optimizing Precast Beams10.1016/j.compstruc.2021.106681 ↗
19. Narques, T.V.N., Carvalho, R.C., Christoforo, A.L., Mascarenhas, F.J.R., Arroyo, F.N., Bomfim Junior, F.C., and Santos, H.F.D. (2023). Use of Real Coded Genetic Algorithm as a Pre-Dimensioning Tool for Prestressed Concrete Beams. Buildings, 13.10.3390/buildings13030819 ↗
20. A Parametric Study on the Cost Optimization of a Reinforced Concrete Abutment Using a Genetic Algorithm10.1139/cjce-2021-0038 ↗
21. Roig, A., Lara-Bocanegra, A.J., Xavier, J., and Majano-Majano, A. (2023). Design Framework for Selection of Grid Topology and Rectangular Cross-Section Size of Elastic Timber Gridshells Using Genetic Optimisation. Appl. Sci., 13.10.3390/app13010063 ↗
22. Sil, A.N., Kontoni, D.-P., and Pancharathi, R.K. (2023). Recent Trends in Civil Engineering, Proceedings of the ICRACE 2021, Silchar, India, 17–19 September 2021, Springer Nature.10.1007/978-981-19-4055-2 ↗
23. Cost Optimization of Cross-Laminated Timber Panels in One-Way Bending10.1007/s00107-022-01830-6 ↗
24. Optimum Design of Plane Timber Trusses Considering Joint Flexibility10.1016/j.engstruct.2004.10.001 ↗
25. Shape and Discrete Sizing Optimization of Timber Trusses by Considering of Joint Flexibility10.1016/j.advengsoft.2009.07.002 ↗
26. (2016). Eurocode 5: Design of Timber Structures—Part 1–1: General—Common Rules and Rules for Buildings (Standard No. EN 1995-1-1).
27. (2016). Eurocode 5: Design of Timber Structures—Part 1–2: General—Structural Fire Design (Standard No. EN 1995-1-2).
28. Genetic Algorithm Optimisation of Heavy Timber Trusses with Dowel Joints According to Eurocode 510.1016/j.biosystemseng.2016.02.011 ↗
29. Cost Optimisation of Glued Laminated Timber Roof Structures Using Genetic Algorithms10.1016/j.biosystemseng.2019.09.008 ↗
30. Hybrid Analytical and Computational Optimization Methodology for Structural Shaping: Material-Efficient Mass Timber Beams10.1016/j.engstruct.2020.110532 ↗
31. Determining Optimal Designs of Timber Beams with Non-Uniform Cross-Section
32. Baranski, J., Szolomicki, J., and Damian, K. (2018, January 4–6). Shape Optimization of Glulam Timber Roof Girders. Proceedings of the World Congress on Engineering and Computer Science, London, UK.
33. (2013). Timber Structures—Glued Laminated Timber and Glued Solid Timber—Requirements (Standard No. EN 14080).
34. (2010). Eurocode 1: Actions on Structures—Part 4: Wind Actions (Standard No. EN 1991-1-4/AC-A1).
35. (2009). Eurocode 1: Actions on Structures—Part 1: General Actions—Densities, Self-Weight, Imposed Loads for Buildings (Standard No. EN 1991-1-1/AC).
36. Argüelles-Álvarez, R., Arriaga-Martitegui, F., Esteban-Herrero, G.I., and González, R.A.B. (2018). Wooden Structures: Calculation Basis, AITIM (Asociación de Investigación Técnica de las Industrias de la Madera). (In Spanish).
37. Borgström, E., and Karlsson, R. (2016). Design of Timber Structures—Structural Aspects of Timber Construction, Swedish Forest Industries Federation.