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Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading

Year 2025, Volume: 8 Issue: 1, 31 - 32
https://doi.org/10.34248/bsengineering.1557319

Abstract

Glulam wood elements are a high-performance structural material created by bonding layers of wood with structural adhesives. This study investigates the behavior of glulam beams made from the tropical timber species Sipo, which has limited representation in existing literature, under different loading types and rates in bending tests. Six Sipo glulam beams were tested: three under four-point bending and three under three-point bending. To assess the behavior at various loading rates, loads were applied at rates of 10 mm/min, 20 mm/min, and 30 mm/min. The results included load-displacement curves, ultimate load capacities, initial stiffness, and energy absorption capacities. The study revealed differences between values obtained from three-point and four-point bending tests. Generally, beams subjected to three-point bending yielded higher values than those tested under four-point bending at the same loading rates. Notably, a significant reduction in values was observed for both testing methods at the loading rate of 20 mm/min.

References

  • Babiak M, Gaff M, Sikora A, Hysek Š. 2018. Modulus of elasticity in three-and four-point bending of wood. Compos Struct, 204: 454-465.
  • Brancheriau L, Bailleres H, Guitard D. 2002. Comparison between modulus of elasticity values calculated using 3 and 4 point bending tests on wooden samples. Wood Sci Technol, 36(5): 367-383.

Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading

Year 2025, Volume: 8 Issue: 1, 31 - 32
https://doi.org/10.34248/bsengineering.1557319

Abstract

Lamine ahşap elemanlar (glulam), belirli boyutta hazırlanan ahşap katmanlarının yapısal yapıştırıcılarla birleştirilerek elde edildiği yüksek dayanım ve rijitlik özelliklerine sahip olan bir yapı malzemesidir. Bu çalışmada, tropikal bir ağaç türü olan ve literatürde az sayıda çalışmada yer alan sipo ağaç türünden üretilen glulam ahşap kirişlerinin farklı yükleme tipleri ve farklı yükleme oranları altında eğilme testindeki davranışı incelenmiştir. Bu kapsamda çalışmada 6 adet sipo glulam ahşap kirişi üzerinde; 3 tanesi dört noktadan ve 3 tanesi de üç noktadan eğilme testine tabi tutulmuştur. Ayrıca, numunelerin farklı yükleme oranlarındaki davranışını da incelemek için 10 mm/min, 20 mm/min. ve 30 mm/min. olacak şekilde farklı yükleme oranları uygulanmıştır. Eğilme testleri sonucunda numunelerin genel yük-deplasman grafikleri, nihai yük kapasiteleri, başlangıç rijitliği ve enerji tüketim kapasiteleri elde edilmiştir. Çalışma sonucunda, glulam kirişleri üzerinde uygulanan üç nokta ve dört nokta eğilme testleri sonucunda elde edilen değerler arasında farklar bulunmuştur. Genel olarak üç nokta eğilme testine tabi tutulan ve aynı yükleme oranlarında olan numuneler, dört nokta eğilme testine tabi tutulan ve aynı yükleme oranlarında numunelerden daha yüksek değerler ile sonuçlanmıştır. Hem dört noktadan eğilme testinde hem de üç noktadan eğilme testinde yükleme oranının 20 mm/min. olduğu durumda numunelerin değerlerinde ciddi oranda azalma olmuştur.

References

  • Babiak M, Gaff M, Sikora A, Hysek Š. 2018. Modulus of elasticity in three-and four-point bending of wood. Compos Struct, 204: 454-465.
  • Brancheriau L, Bailleres H, Guitard D. 2002. Comparison between modulus of elasticity values calculated using 3 and 4 point bending tests on wooden samples. Wood Sci Technol, 36(5): 367-383.
There are 2 citations in total.

Details

Primary Language English
Subjects Architectural Engineering
Journal Section Research Articles
Authors

Minel Ahu Kara Alaşalvar 0000-0003-1138-1446

Publication Date
Submission Date September 27, 2024
Acceptance Date November 15, 2024
Published in Issue Year 2025 Volume: 8 Issue: 1

Cite

APA Kara Alaşalvar, M. A. (n.d.). Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading. Black Sea Journal of Engineering and Science, 8(1), 31-32. https://doi.org/10.34248/bsengineering.1557319
AMA Kara Alaşalvar MA. Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading. BSJ Eng. Sci. 8(1):31-32. doi:10.34248/bsengineering.1557319
Chicago Kara Alaşalvar, Minel Ahu. “Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading”. Black Sea Journal of Engineering and Science 8, no. 1 n.d.: 31-32. https://doi.org/10.34248/bsengineering.1557319.
EndNote Kara Alaşalvar MA Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading. Black Sea Journal of Engineering and Science 8 1 31–32.
IEEE M. A. Kara Alaşalvar, “Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading”, BSJ Eng. Sci., vol. 8, no. 1, pp. 31–32, doi: 10.34248/bsengineering.1557319.
ISNAD Kara Alaşalvar, Minel Ahu. “Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading”. Black Sea Journal of Engineering and Science 8/1 (n.d.), 31-32. https://doi.org/10.34248/bsengineering.1557319.
JAMA Kara Alaşalvar MA. Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading. BSJ Eng. Sci.;8:31–32.
MLA Kara Alaşalvar, Minel Ahu. “Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading”. Black Sea Journal of Engineering and Science, vol. 8, no. 1, pp. 31-32, doi:10.34248/bsengineering.1557319.
Vancouver Kara Alaşalvar MA. Effects of Loading Type and Loading Rate on Glulam Sipo Timber Beams for Flexural Loading. BSJ Eng. Sci. 8(1):31-2.

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