Structural solutions to produce long timber Veneer Based Composite hollow sections.
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| Title: | Structural solutions to produce long timber Veneer Based Composite hollow sections. |
|---|---|
| Authors: | Gilbert, Benoit P.1 b.gilbert@griffith.edu.au, Underhill, Ian D.1, Fernando, Dilum2, Bailleres, Henri3 |
| Source: | Construction & Building Materials. May2017, Vol. 139, p81-92. 12p. |
| Subjects: | Timber, Structural mechanics, Wood veneers & veneering, Composite materials, Lumber industry |
| Geographic Terms: | Australia |
| Abstract: | Veneer Based Composite (VBC) hollow sections are currently being developed in Australia as alternative products to sawn timber. However, due to the limited log length that peeling lathes can accommodate, solutions to manufacture long sections need to be investigated to create useable beams and columns. This paper experimentally assesses the bending capacity of three different concepts. Two concepts consist of manufacturing short sub-sections and connecting them together with (i) a sleeve inserted into the hollow-form and (ii) wrapping Fibre Reinforced Polymer (FRP) around the sub-sections at the connection. The third concept consists of manufacturing the sections in a continuous process, similar to LVL products. Three sets of four nominally identical circular hollow sections (1.2 m long, nominal 76.1 mm internal diameter and 15 mm wall thickness) were manufactured from Hoop pine ( Araucaria cunninghamii ) veneers. In each set, one section was used as the reference capacity, two sections were cut in half with the two halves being connected back together with either an aluminium sleeve or Glass Fibre Reinforced Polymer (GFRP). The last section had the veneers staggered and end joined, to mimic a continuous manufacturing process. Once cured the sections were then tested in four points bending. The sleeved sections were found to have the lowest bending capacity, while the GFRP and continuous sections reached more than 80% of the capacity of the reference sections. The latter two designs, therefore offer a potential solution for creating useable lengths of VBC hollow sections. Further research is required to refine and validate the design. [ABSTRACT FROM AUTHOR] |
| Copyright of Construction & Building Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Structural solutions to produce long timber Veneer Based Composite hollow sections. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gilbert%2C+Benoit+P%2E%22">Gilbert, Benoit P.</searchLink><relatesTo>1</relatesTo><i> b.gilbert@griffith.edu.au</i><br /><searchLink fieldCode="AR" term="%22Underhill%2C+Ian+D%2E%22">Underhill, Ian D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fernando%2C+Dilum%22">Fernando, Dilum</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Bailleres%2C+Henri%22">Bailleres, Henri</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Construction+%26+Building+Materials%22">Construction & Building Materials</searchLink>. May2017, Vol. 139, p81-92. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Timber%22">Timber</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+mechanics%22">Structural mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Wood+veneers+%26+veneering%22">Wood veneers & veneering</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Lumber+industry%22">Lumber industry</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Australia%22">Australia</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Veneer Based Composite (VBC) hollow sections are currently being developed in Australia as alternative products to sawn timber. However, due to the limited log length that peeling lathes can accommodate, solutions to manufacture long sections need to be investigated to create useable beams and columns. This paper experimentally assesses the bending capacity of three different concepts. Two concepts consist of manufacturing short sub-sections and connecting them together with (i) a sleeve inserted into the hollow-form and (ii) wrapping Fibre Reinforced Polymer (FRP) around the sub-sections at the connection. The third concept consists of manufacturing the sections in a continuous process, similar to LVL products. Three sets of four nominally identical circular hollow sections (1.2 m long, nominal 76.1 mm internal diameter and 15 mm wall thickness) were manufactured from Hoop pine ( Araucaria cunninghamii ) veneers. In each set, one section was used as the reference capacity, two sections were cut in half with the two halves being connected back together with either an aluminium sleeve or Glass Fibre Reinforced Polymer (GFRP). The last section had the veneers staggered and end joined, to mimic a continuous manufacturing process. Once cured the sections were then tested in four points bending. The sleeved sections were found to have the lowest bending capacity, while the GFRP and continuous sections reached more than 80% of the capacity of the reference sections. The latter two designs, therefore offer a potential solution for creating useable lengths of VBC hollow sections. Further research is required to refine and validate the design. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Construction & Building Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.conbuildmat.2017.02.046 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 81 Subjects: – SubjectFull: Timber Type: general – SubjectFull: Structural mechanics Type: general – SubjectFull: Wood veneers & veneering Type: general – SubjectFull: Composite materials Type: general – SubjectFull: Lumber industry Type: general – SubjectFull: Australia Type: general Titles: – TitleFull: Structural solutions to produce long timber Veneer Based Composite hollow sections. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gilbert, Benoit P. – PersonEntity: Name: NameFull: Underhill, Ian D. – PersonEntity: Name: NameFull: Fernando, Dilum – PersonEntity: Name: NameFull: Bailleres, Henri IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 05 Text: May2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 09500618 Numbering: – Type: volume Value: 139 Titles: – TitleFull: Construction & Building Materials Type: main |
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