Numerical analysis of temperature distributions in glulam beams exposed to fire and reinforced with aramid composite

• Autorzy: Jończyk Damian , Hajdas Damian , Major Maciej

Identyfikatory

DOI

10.5604/01.3001.0054.7280

• Języki publikacji: EN

Abstrakty

EN

Currently, strengthening timber elements with the use of various materials has become popular. Reinforcements are used to repair existing elements or improve the static operating characteristics of new elements. Fibre composites are being increasingly used as reinforcement. Investigations have shown that the use of fibre composites influences the nature of static work. However, an under-researched issue is the determination of the influence of composite reinforcement on temperature distributions and, consequently, the depth and shape of charring in the cross-section during a fire. The article presents a numerical thermal analysis of cross-sections of glulam beams reinforced with aramid materials in various forms. Fire action was assumed in accordance with the ISO fire curve and the fire load on three of the four edges of the beams was modelled. Temperature distributions are presented for all analysed cases, which shows the beneficial effect of the use of aramid reinforcement on the temperature distribution in the cross-section during a fire.

Słowa kluczowe

EN

thermal analysis; fire safety; AFRP; composites; structural strengthening; timber

• Wydawca: Szkoła Główna Służby Pożarniczej
• Czasopismo: Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej
• Rocznik: 2024
• Tom: Nr 91 (tom 1)
• Strony: 7--21
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Jończyk Damian

• Czestochowa University of Technology, Faculty of Civil Engineering, Czestochowa

• https://orcid.org/0000-0003-2161-4768

autor

Hajdas Damian

• The Central School of the State Fire Service in Czestochowa, Czestochowa

• https://orcid.org/0000-0003-0350-7280

autor

Major Maciej

• Czestochowa University of Technology, Faculty of Civil Engineering, Czestochowa

• https://orcid.org/0000-0001-5114-7932

Bibliografia

• 1. Bedon, Ch., Fragiacomo, M., (2019). Experimental and numerical analysis of in-plane compressed unprotected log-haus timber walls in fire conditions. Fire Safety Journal, 107, 89–103.
• 2. Borri, A., Corradi, M., Grazini, A., (2005). A method for flexural reinforcement of old wood beams with CFRP materials. Composites: Part B, 36, 143–153.
• 3. De Luca, V., Marano, C., (2012). Prestressed glulam timbers reinforced with steel bars. Construction and Building Materials, 30, 206–217.
• 4. Du, H., Hu, X., Xie, Z., Meng, Y., (2021). Experimental and analytical investigation on fire resistance of glulam-concrete composite beams. Journal of Building Engineering, 44, 103244.
• 5. Fahrni, R., Klippel, M., Just, A., Ollino, A., Frangi, A., (2019). Fire tests on glued-laminated timber beams with specific local material properties. Fire Safety Journal, 107, 161–169.
• 6. Fossetti, M., Minafò, G., Papia, M., (2015). Flexural behaviour of glulam timber beams reinforced with FRP cords. Construction and Building Materials, 95, 54–64.
• 7. Fragiacomo, M., Menis, A., Moss, P.J., Buchanan, A.H., Clemente, I., (2010). Numerical and Experimental Evaluation of the Temperature Distribution Within Laminated Veneer Lumber (LVL) Exposed to Fire. Journal of Structural Fire Engineering, 1 (3), 145–159.
• 8. Fragiacomo, M., Menis, A., Moss, P.J., Clemente, I., Buchanan, A.H., (2010). Numerical and Experimental Thermal-Structural Behaviour of Laminated Veneer Lumber (Lvl) Exposed to Fire. 11th World Conference on Timber Engineering 2010 (WCTE 2010), 20–24 June 2010, Trentino, Italy.
• 9. Halicka, A., Ślósarz, Sz., (2021). Strengthening of timber beams with pretensioned CFRP strips. Structures, 34, 2912–2921.
• 10. ISO 834-1:1999 Fire-resistance tests Elements of building construction Part 1: General requirements.
• 11. Jasieńko, J., Nowak, T., (2014). Solid timber beams strengthened with steel plates – Experimental studies. Construction and Building Materials, 63, 81–88.
• 12. Källander B., Lind, P., (2001). Strength properties of wood adhesives after exposure to fire. NORDTEST Project No. 1482-00, SP Report 2001:35, Building Technology Borås.
• 13. Kawecki, B., Pieńko, M., Lipecki, T., Stachowicz, A., (2023). Preliminary comparative study on the behaviour of highly‑loaded glue laminated timber and wood‑CFRP composite beams exposed to local fire. European Journal of Wood and Wood Products, 81, 1359–1373.
• 14. Kevlar Aramid Fiber. Technical Guide, 2017, DuPont.
• 15. Klippel, M., Frangi, A., Fontana, M., (2011). Influence of the Adhesive on the Load- Carrying Capacity of Glued Laminated Timber Members in Fire. Fire Safety Science, 10, 1219–1232.
• 16. Kmiecik, K., (2019). Bearing capacity assessment for a timber girder when subject to a localised fire. IOP Conf. Ser.: Mater. Sci. Eng., 586, 012001.
• 17. Kmiecik, K., Domański, T., (2018). Analysis of the load-bearing capacity of timber members exposed to fire. MATEC Web of Conferences, 247, 00009.
• 18. Kmiecik, K., (2019). Impact of wood species on the timber beam strength and stiffness under fire. IOP Conf. Ser.: Mater. Sci. Eng., 586, 012004.
• 19. Kucíková, L., Janda, T., Sy´kora, J., Šejnoha, M., Marseglia, G., (2021). Experimental and numerical investigation of the response of GLT beams exposed to fire. Construction and Building Materials, 299, 123846.
• 20. Kytka, T., Gašparík, M., Novák, D., Sahula, L., Karami, E., Das, S., (2024). Burning Properties of Combined Glued Laminated Timber. Fire, 7, 30.
• 21. Liu, Z., Zhang, B., Jia, H., Kilpatrick, T., (2023). Numerical analysis of flexural performances of composite steel-timber beams under fire conditions. Journal of Civil Engineering and Construction, 12, 1–19.
• 22. Metelli, G., Preti, M., Giuriani, E., (2015). On the delamination phenomenon in the repair of timber beams with steel plates. Construction and Building Materials, 102, 1018–1028.
• 23. EN 1991-1-2 Eurocode 1: Actions on structures – Part 1-2: General actions – Actions on structures exposed to fire.
• 24. EN 1995-1-2 Eurocode 5: Design of timber structures — Part 1-2: General — Structural fire design.
• 25. Rajczyk, M., Jończyk, D., (2012). Study on Strengthening Glued-Laminated Timber with Aramid Cords and Properties of Composite Materials. Advanced Materials Research, 58, 142–145.
• 26. Tang, Z., Yue, K., Lu, D., Shi, X., Chu, Y., Tian, Z., Lu, W., (2022). Experimental investigation into fire performance of mixed species glulam beams under three‑side fire exposure. European Journal of Wood and Wood Products, 80, 235–245.
• 27. Yang, H., Liu, W., Lu, W., Zhu, S., Geng, Q., (2016). Flexural behavior of FRP and steel reinforced glulam beams: Experimental and theoretical evaluation. Construction and Building Materials, 106, 550–563.
• 28. Zhang, Y., Su, Z, Ni, W., Zhang, X., Wang, L., (2024). Experimental study and theoretical analysis of fire resistance properties of prestressed glued laminated timber beams. Construction and Building Materials, 424, 135967.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).