Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method
Beams strengthened with a composite material consisting of carbon and glass fibre stabilised with two types of adhesives were evaluated. The primary objective was to determine the technical attributes of joints, the maximum bending strength capacity, deflection, and modulus of elasticity. The reinfo...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2015-06-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_4674_Sedivka_Determination_Strength_Characteristics_Construction_Timber |
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| author | Přemysl Šedivka Jan Bomba Martin Böhm Aleš Zeidler |
| author_facet | Přemysl Šedivka Jan Bomba Martin Böhm Aleš Zeidler |
| author_sort | Přemysl Šedivka |
| collection | DOAJ |
| description | Beams strengthened with a composite material consisting of carbon and glass fibre stabilised with two types of adhesives were evaluated. The primary objective was to determine the technical attributes of joints, the maximum bending strength capacity, deflection, and modulus of elasticity. The reinforcement fibres tested were based on carbon and glass fibre. Epoxy and polyurethane adhesives were used for stabilising the fibres on a spruce timber beam. Composite beams glued in both a prestressed and non-prestressed condition were tested and then compared with non-reinforced control beams. A four-point deflection pursuant to EN 408 (1995) was used in the determination of the strength of the load-bearing construction beams based on composites, consisting of a fibre type, adhesive type, and spruce timber. This approach was applied to define the size of the construction beams and process the measurement results. Reinforcing construction beams with fibres applied in a prestressed condition resulted in an increase in the bending strength capacity by 31.6 to 44.4% compared with a non-reinforced solid timber construction beam. These construction elements, strengthened with carbon and glass fibre composites glued with epoxy and polyurethane adhesives, are suitable for applications that require bending resistance perpendiculary to the glued joint direction. |
| first_indexed | 2024-12-23T04:37:45Z |
| format | Article |
| id | doaj.art-538bec04fa4d4b248ac1d229470abe2b |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-23T04:37:45Z |
| publishDate | 2015-06-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-538bec04fa4d4b248ac1d229470abe2b2022-12-21T17:59:51ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-06-011034674468510.15376/biores.10.3.4674-4685Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive MethodPřemysl Šedivka0Jan Bomba1Martin Böhm2Aleš Zeidler3Czech University of Life Sciences Prague; Czech RepublicCzech University of Life Sciences Prague; Czech RepublicCzech University of Life Sciences Prague; Czech RepublicCzech University of Life Sciences Prague; Czech RepublicBeams strengthened with a composite material consisting of carbon and glass fibre stabilised with two types of adhesives were evaluated. The primary objective was to determine the technical attributes of joints, the maximum bending strength capacity, deflection, and modulus of elasticity. The reinforcement fibres tested were based on carbon and glass fibre. Epoxy and polyurethane adhesives were used for stabilising the fibres on a spruce timber beam. Composite beams glued in both a prestressed and non-prestressed condition were tested and then compared with non-reinforced control beams. A four-point deflection pursuant to EN 408 (1995) was used in the determination of the strength of the load-bearing construction beams based on composites, consisting of a fibre type, adhesive type, and spruce timber. This approach was applied to define the size of the construction beams and process the measurement results. Reinforcing construction beams with fibres applied in a prestressed condition resulted in an increase in the bending strength capacity by 31.6 to 44.4% compared with a non-reinforced solid timber construction beam. These construction elements, strengthened with carbon and glass fibre composites glued with epoxy and polyurethane adhesives, are suitable for applications that require bending resistance perpendiculary to the glued joint direction.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_4674_Sedivka_Determination_Strength_Characteristics_Construction_TimberComposite materialReinforced woodCarbon fibresGlass fibres |
| spellingShingle | Přemysl Šedivka Jan Bomba Martin Böhm Aleš Zeidler Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method BioResources Composite material Reinforced wood Carbon fibres Glass fibres |
| title | Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method |
| title_full | Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method |
| title_fullStr | Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method |
| title_full_unstemmed | Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method |
| title_short | Determination of Strength Characteristics of Construction Timber Strengthened with Carbon and Glass Fibre Composite Using a Destructive Method |
| title_sort | determination of strength characteristics of construction timber strengthened with carbon and glass fibre composite using a destructive method |
| topic | Composite material Reinforced wood Carbon fibres Glass fibres |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_4674_Sedivka_Determination_Strength_Characteristics_Construction_Timber |
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