Local Reinforcement of Timber with Composite and Lignocellulosic Materials

Burawska-Kupniewska, Izabela; Zbiec, M; Tomusiak, A; Beer, P.

doi:10.15376/biores.10.1.457-468

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…Nierzadko stanowią podstawowy element porównawczej oceny wartości użytkowej drewna pochodzącego z różnych terenów Polski (Chmielowski i in., 2018;Dzbeński, 1994;1995;Krzosek, 2002;2009;Roszyk, 2016). Sęki, zakłócając jednorodność budowy drewna poprzez zmianę kierunku przebiegu włókien, wpływają na strefowe zmniejszenie jego wytrzymałości (Baltrušaitis, 2000;Burawska i in., 2012;2014). Deformacja układu włókien w materiałach drzewnych, wskazująca na odchylenie elementów budowy drewna od osi podłużnej tarcicy, często stanowi obszar przylegający do strefy sęków (Lukacevic i in., 2015).…”

Section: Wprowadzenieunclassified

Jakościowo-Ilościowa Optymalizacja Wydajności Przerobu Drewna Sosnowego W Produkcji Ram Łóżek

Pałubicki,

Jarecki,

Wieruszewski

et al. 2022

Acta Sci.Pol. Silv.

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Section: Wprowadzenieunclassified

Jakościowo-Ilościowa Optymalizacja Wydajności Przerobu Drewna Sosnowego W Produkcji Ram Łóżek

Pałubicki,

Jarecki,

Wieruszewski

et al. 2022

Acta Sci.Pol. Silv.

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“…Reinforcing wooden beams and columns with durable and economical materials, such as glass and carbon fi bers, can optimize this versatile material and increase its load carrying capacity, making possible and easier, for instance, the restoration of historic buildings (Johns and Lacroix, 2000;Alam, 2009;García, 2016). There are several studies in the literature about reinforcing wooden structural members with composite materials (Ramage, 2016;Cestari, 2013;Burawska, 2015;Dewey, 2018). Some works have characterized Erisma uncinatum species, though the studies didn't consider applying preservative treatment or any reinforcement on the wood surface.…”

Section: Introductionmentioning

confidence: 99%

“…Local Reinforcement of CFRP covering 5% of the entire beam length was used to analyze its eff ectiveness on wood strength through the static bending test. As a result, local reinforcement led to a signifi cant increment in strength and stiff ness of the beams (Burawska et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Influence of Reinforcement on Wood Tensile Strength Submitted to Weathering

et al. 2021

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Wood is an important building material used in roof structures, bridges, viaducts, and pedestrian bridges. In order to improve its use, as well as rehabilitate structural parts deteriorated by weathering, reinforcement of beams and columns with composite material is performed. Given the climate action on structures, it is important to know the influence and behavior of wood and composite material when subjected to weathering. This study aimed to evaluate the influence of the reinforcement of CCB-treated wood with carbon fiber reinforced polymer (CFRP) and subjected to artificial weathering on its tensile strength parallel to the fibers. The results showed a 30% reduction in strength due to weathering and a 25% increase in tensile strength, showing the positive influence of reinforcement even under artificial weathering conditions

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“…Studies on the durability of straight and bent beams composed of wooden layers glued together with synthetic resins indicate that such elements have comparable load-bearing capacities to those made of solid timber. Moreover, the layered timber structure has resulted in an improved quality of the material [ 3 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

The Usefulness of Pine Timber (Pinus sylvestris L.) for the Production of Structural Elements. Part II: Strength Properties of Glued Laminated Timber

et al. 2020

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The paper assessed the feasibility of manufacturing glued structural elements made of pine wood after grading it mechanically in a horizontal arrangement. It was assumed that the pine wood was not free of defects and that the outer lamellas would also be visually inspected. This would result in only rejecting items with large, rotten knots. Beams of the assumed grades GL32c, GL28c and GL24c were made of the examined pine wood. Our study indicated that the expected modulus of elasticity in bending was largely maintained by the designed beam models but that their strength was connected with the quality of the respective lamellas, rather than with their modulus of elasticity. On average, the bending strength of the beams was 44.6 MPa. The cause of their destruction was the individual technical quality of a given item of timber, which was loosely related to its modulus of elasticity, assessed in a bending test. Although the modulus of elasticity of the manufactured beam types differed quite significantly (11.45–14.08 kN/mm2), the bending strength for all types was similar. Significant differences occurred only during a more detailed analysis because lower classes were characterized by a greater variation of the bending strength. In this case, beams with a strength of 24 MPa to 50 MPa appeared.

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Local Reinforcement of Timber with Composite and Lignocellulosic Materials

Cited by 6 publications

References 2 publications

Jakościowo-Ilościowa Optymalizacja Wydajności Przerobu Drewna Sosnowego W Produkcji Ram Łóżek

Jakościowo-Ilościowa Optymalizacja Wydajności Przerobu Drewna Sosnowego W Produkcji Ram Łóżek

Influence of Reinforcement on Wood Tensile Strength Submitted to Weathering

The Usefulness of Pine Timber (Pinus sylvestris L.) for the Production of Structural Elements. Part II: Strength Properties of Glued Laminated Timber

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