Effect of the Wrapping Layers Number and Length on the Flexural Properties of Chestnut Beams Reinforced with Basalt-FRP

Year 2023, Volume: 9 Issue: 4, 23 - 30, 31.12.2023

Yasemin Şimşek Türker , Şemsettin Kılınçarslan

Abstract

Traditional wooden structures often face deterioration due to elevated levels of humidity and temperature. When wood beams suffer dam-age, the typical approach has been either replacement or reinforcement with steel. However, there remains a pressing need to fortify and restore these structures, thus averting the necessity for demolition. The strengthening and rehabilitation of such existing wooden edifices have emerged as a focal point for numerous re-searchers. In recent times, Fiber reinforced polymers (FRP) are used in various areas such as buildings and bridges due to their ease of application, light weight, high strength and resistance to environmental effects. A multitude of researchers have successfully employed FRP composite materials in fortifying wooden members and structures. In this study, 70x70x1200 mm chestnut beams were strengthened 1, 2, 3 layers and 300 mm, 600 mm, 900 mm length with Basalt-FRP fabrics. Beams reinforced with fiber reinforced polymers were subjected to bending tests. As a result of the bending test, it was determined that the bending properties of the beam increased as the number of wraps and length increased.

Keywords

Wrapping layers number, chestnut beams, Basalt-FRP, wrapping length

Sargılama Tabaka Sayısı ve Uzunluğunun Bazalt-FRP ile Güçlendirilmiş Kestane Kirişlerin Eğilme Özelliklerine Etkisi

Abstract

Geleneksel ahşap yapılar genellikle yüksek nem ve sıcaklık nedeniyle bozulmayla karşı karşıya kalmaktadır. Ahşap kirişler hasar gördüğünde genel olarak çelik eleman ile güçlendirme veya yer değiştirme yapılmaktadır. Yapıların güçlendirilmesi ve restore edilmesi, yıkım zorunluluğunun ortadan kaldırılması yönünde bir ihtiyaç bulunmaktadır. Bu tür mevcut ahşap yapıların güçlendirilmesi ve rehabilitasyonu birçok araştırmacının odak noktası olarak ortaya çıkmıştır. Son zamanlarda, Fiber Takviyeli Polimerler (FRP) uygulama kolaylığı, hafif olması, dayanımının yüksek olması, çevresel etkilere karşı dirençli olması sebebiyle binalar ve köprüler gibi çeşitli alanlarda kullanılmaktadır. Çok sayıda araştırmacı, ahşap elemanların ve yapıların güçlendirilmesinde FRP kompozit malzemeleri başarıyla kullanmıştır. Bu çalışmada 70x70x1200 mm kestane kirişler 1, 2, 3 kat ve 300 mm, 600 mm, 900 mm uzunlukta Bazalt-FRP kumaş ile güçlendirilmiştir. Fiber takviyeli polimerlerle güçlendirilmiş kirişler eğilme testlerine tabi tutulmuştur. Eğilme testi sonucunda sargılama sayısı ve uzunluğu arttıkça kirişin eğilme özelliklerinin arttığı tespit edilmiştir.

Keywords

Sarma katmanları sayısı, kestane kirişler, Bazalt-FRP, sarma uzunluğu

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