Reinforcement of I-Shaped Beams Constructed with Parallel Strand Lumber and Laminated Veneer Lumber Utilizing Glass Fiber Polymer

Document Type : Research Paper

Authors

1 Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Zabol, Zabol, Iran

2 Wood and Paper Science and Technology

3 professor.Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Zabol, Zabol, Iran

10.22034/ijwp.2023.2000248.1609

Abstract

The use of engineered wood products in the construction industry is constantly increasing due to various technical and economic reasons such as high strength-to-weight ratio, lack of restrictions in access to different dimensions, and the possibility of production using waste. I-shaped beams are one of the types of engineered wood products which Their properties can be controlled according to the design and the type of materials used in it.This study is done For the purpose of investigate the Reinforcement of I-shaped beams made with parallel strand lumber and laminated veneer lumber reinforced with glass fibers and epoxy resin. The variable factors of this research included the type of web and flange. The mechanical properties of the manufactured beams, including bending strength, modulus of elasticity, shear strength of the web, compressive strength parallel to the flange and compressive strength propertional limit of the flange were investigated and tested. The obtained results were analyzed in the form of a completely random design and Duncan's test was used to group the means. The results showed that the use of laminated lumber reinforced with glass fiber polymer in the web of beam compared with conventional laminated lumber Cause of improvement the modulus of rupture by 49.6%, the modulus of elasticity by 73.17%, the shear strength of the web by 55.55%, compressive strength parallel to the flange by 16/41% and 20.65% of the compressive strength propertional limit of the flange. Also, the use of laminated lumber reinforced with glass fiber polymer in the flanges of beams had a much better mechanical performance than conventional laminated lumber, parallel strand lumber and parallel strand lumber reinforced with glass fiber polymer.

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References

[1] Kuram, E. 2022. Advances in development of green composites based on natural fibers. A review. Emergent Materials, 5(3), 811-831.
[2] Nasir, M., Khali, D. P., Jawaid, M., Tahir, P. M., Siakeng, R., Asim, M. and Khan, T. A. 2019. Recent development in binderless fiber-board fabrication from agricultural residues: A review. Construction and Building Materials, 211, 502-516.
[3] Echeverria, C. A., Pahlevani, F. and Sahajwalla, V. 2020. Valorisation of discarded nonwoven polypropylene as potential matrix-phase for thermoplastic-lignocellulose hybrid material engineered for building applications. Journal of Cleaner Production, 258, 120730.
[4] Hasan, K. F., Horváth, P. G. and Alpár, T. 2022. Lignocellulosic fiber cement compatibility: a state of the art review. Journal of Natural Fibers, 19(13), 5409-5434.
[5] Sotayo, A., Bradley, D., Bather, M., Sareh, P., Oudjene, M., El-Houjeyri, I. and Guan, Z. 2020. Review of state of the art of dowel laminated timber members and densified wood materials as sustainable engineered wood products for construction and building applications. Developments in the Built Environment, 1, 100004.
[6] Sun, X., He, M. and Li, Z. 2020. Novel engineered wood and bamboo composites for structural applications: State-of-art of manufacturing technology and mechanical performance evaluation. Construction and Building Materials, 249, 118751.
[7] Gong, M. 2021. Wood and Engineered Wood Products: Stress and Deformation. In Engineered Wood Products for Construction. IntechOpen.
[8] Markström, E., Kuzman, M. K., Bystedt, A., Sandberg, D. and Fredriksson, M. (2018). Swedish architects view of engineered wood products in buildings. Journal of Cleaner Production, 181, 33-41.
[9] Milner, H. R. 2009. Sustainability of engineered wood products in construction. In Sustainability of construction materials (pp. 184-212). Woodhead Publishing.
[10] Shahnewaz, M., Islam, M. S., Tannert, T. and Alam, M. S. (2019). Flange-notched wood I-joists reinforced with OSB collars: Experimental investigation and sensitivity analysis. In Structures (Vol. 19, pp. 490-498). Elsevier.
[11] Spulle, U., Lipinskis, I. and Tuherm, H., 2017. Some bending properties of I-joists made with birch laminated plywood panels. Drewno: prace naukowe, doniesienia, komunikaty, 60.
 [12] Islam, M. S., Shahnewaz, M. and Alam, M. S. 2015. Structural capacity of timber I-joist with flange notch: Experimental evaluation. Construction and Building Materials, 79, 290-300.
[13] Porteous, J. and Kermani, A. 2013. Structural timber design to Eurocode 5. John Wiley & Sons.
[14] Singh, P., Singh, S., Ojha, R., Tiwari, P., Khan, S., Kumar, R. and Gupta, A. 2022. Characterization of Wear of FRP Composites: A review. Materials Today: Proceedings.
[15] Hollaway, L. C. 2010. A review of the present and future utilisation of FRP composites in the civil infrastructure with reference to their important in-service properties. Construction and building materials, 24(12), 2419-2445.
 [16] Corradi, M., Vemury, C. M., Edmondson, V., Poologanathan, K. and Nagaratnam, B. 2021. Local FRP reinforcement of existing timber beams. Composite Structures, 258, 113363.
[17] Borri, A., Corradi, M. and Grazini, A. 2003. FRP reinforcement of wood elements under bending loads. In Proceedings of the 10th International Conference on Structural Faults+ Repair, London, UK (Vol. 13).
[18] Borri, A., Corradi, M. and Grazini, A. 2005. A method for flexural reinforcement of old wood beams with CFRP materials. Composites Part B: Engineering, 36(2), 143-153.
 [19] Raftery, G. M. and Rodd, P. D. 2015. FRP reinforcement of low-grade glulam timber bonded with wood adhesive. Construction and building materials, 91, 116-125.
[20] Nazerian, M., Rezaian, A. and Shamsian, M. 2019. Effect of web configuration and flange type on bending strength of I-joist beams. Iranian Journal of Wood and Paper Science Research, 34(2): 263-275. [In Persian]
 [21] Morales-Conde, M. J., Rodríguez-Liñán, C. and Rubio-de Hita, P. 2015. Bending and shear reinforcements for timber beams using GFRP plates. Construction and Building Materials, 96, 461-472.
[22] dela Rosa García, P., Escamilla, A. C. and García, M. N. G. 2013. Bending reinforcement of timber beams with composite carbon fiber and basalt fiber materials. Composites Part B: Engineering, 55, 528-536.
[23] Campilho, R. D. S. G., De Moura, M. F. S. F., Barreto, A. M. J. P., Morais, J. J. L. and  Domingues, J. J. M. S. 2010. Experimental and numerical evaluation of composite repairs on wood beams damaged by cross-graining. Construction and Building Materials, 24(4), 531-537.
 [24] Alam, P., Ansell, M. P. and Smedley, D. 2009. Mechanical repair of timber beams fractured in flexure using bonded-in reinforcements. Composites Part B: Engineering, 40(2), 95-106.
 [25] Fu, Q., Yan, L., Ning, T., Wang, B. and Kasal, B. 2020. Interfacial bond behavior between wood chip concrete and engineered timber glued by various adhesives. Construction and Building Materials, 238, 117743.
Iranian Journal of Wood and Paper Industries
Volume 14, Issue 4
February 2024
Pages 389-402

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