Structural performance and advantages of DVW reinforced moment transmitting timber joints with steel plate connectors and tube fasteners

D. Brandon, A.J.M. Leijten

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

2 Citations (Scopus)
77 Downloads (Pure)

Abstract

This paper presents a study to the moment-rotation aspects of two 3-member DVW reinforced timber connections with an inter-connecting steel plate used as middle member. Previous studies showed that reinforcing dowel-type timber connections with ‘densified veneer wood’ (DVW) and using expanded tube fasteners results in connections with superior structural properties compared to all conventional connections. In this connection type, the DVW prevents premature timber splitting. The tube fasteners aid a high initial stiffness, a high ductility and a high reliability. A drawback of the connection, already in a 3-member connection, is the total thickness. By using only two side members and a much thinner, steel middle member, the thickness is strongly reduced. The steel middle member is used as a connecting interface in a flitch plate connection. This generally results in a 50% reduction of the rotational stiffness. However, it is shown by an analytical and numerical study, that the rotational stiffness of two closely spaced, flitch plate DVW connections acting in series remains unchanged if certain conditions are fulfilled. Two full connection tests are performed to confirm the analytical and numerical results. Additionally, the paper presents a comparison to a conventional connection, which confirms the structural quality of the reinforced connection.
Original languageEnglish
Title of host publicationMaterials and joints in timber structures : recent developments of technology
EditorsS. Aicher, H.-W. Reinhardt, H. Garrecht
Place of PublicationStuttgart
PublisherSpringer
Pages255-263
Number of pages839
ISBN (Print)978-94-007-7811-5
DOIs
Publication statusPublished - 2014

Publication series

NameRILEM Bookseries
Volume9
ISSN (Print)2211-0844

Fingerprint

Connectors (structural)
Veneers
Fasteners
Timber
Wood
Steel
Stiffness
Ductility
Structural properties

Cite this

Brandon, D., & Leijten, A. J. M. (2014). Structural performance and advantages of DVW reinforced moment transmitting timber joints with steel plate connectors and tube fasteners. In S. Aicher, H-W. Reinhardt, & H. Garrecht (Eds.), Materials and joints in timber structures : recent developments of technology (pp. 255-263). (RILEM Bookseries; Vol. 9). Stuttgart: Springer. https://doi.org/10.1007/978-94-007-7811-5_24
Brandon, D. ; Leijten, A.J.M. / Structural performance and advantages of DVW reinforced moment transmitting timber joints with steel plate connectors and tube fasteners. Materials and joints in timber structures : recent developments of technology. editor / S. Aicher ; H.-W. Reinhardt ; H. Garrecht. Stuttgart : Springer, 2014. pp. 255-263 (RILEM Bookseries).
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abstract = "This paper presents a study to the moment-rotation aspects of two 3-member DVW reinforced timber connections with an inter-connecting steel plate used as middle member. Previous studies showed that reinforcing dowel-type timber connections with ‘densified veneer wood’ (DVW) and using expanded tube fasteners results in connections with superior structural properties compared to all conventional connections. In this connection type, the DVW prevents premature timber splitting. The tube fasteners aid a high initial stiffness, a high ductility and a high reliability. A drawback of the connection, already in a 3-member connection, is the total thickness. By using only two side members and a much thinner, steel middle member, the thickness is strongly reduced. The steel middle member is used as a connecting interface in a flitch plate connection. This generally results in a 50{\%} reduction of the rotational stiffness. However, it is shown by an analytical and numerical study, that the rotational stiffness of two closely spaced, flitch plate DVW connections acting in series remains unchanged if certain conditions are fulfilled. Two full connection tests are performed to confirm the analytical and numerical results. Additionally, the paper presents a comparison to a conventional connection, which confirms the structural quality of the reinforced connection.",
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Brandon, D & Leijten, AJM 2014, Structural performance and advantages of DVW reinforced moment transmitting timber joints with steel plate connectors and tube fasteners. in S Aicher, H-W Reinhardt & H Garrecht (eds), Materials and joints in timber structures : recent developments of technology. RILEM Bookseries, vol. 9, Springer, Stuttgart, pp. 255-263. https://doi.org/10.1007/978-94-007-7811-5_24

Structural performance and advantages of DVW reinforced moment transmitting timber joints with steel plate connectors and tube fasteners. / Brandon, D.; Leijten, A.J.M.

Materials and joints in timber structures : recent developments of technology. ed. / S. Aicher; H.-W. Reinhardt; H. Garrecht. Stuttgart : Springer, 2014. p. 255-263 (RILEM Bookseries; Vol. 9).

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

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AB - This paper presents a study to the moment-rotation aspects of two 3-member DVW reinforced timber connections with an inter-connecting steel plate used as middle member. Previous studies showed that reinforcing dowel-type timber connections with ‘densified veneer wood’ (DVW) and using expanded tube fasteners results in connections with superior structural properties compared to all conventional connections. In this connection type, the DVW prevents premature timber splitting. The tube fasteners aid a high initial stiffness, a high ductility and a high reliability. A drawback of the connection, already in a 3-member connection, is the total thickness. By using only two side members and a much thinner, steel middle member, the thickness is strongly reduced. The steel middle member is used as a connecting interface in a flitch plate connection. This generally results in a 50% reduction of the rotational stiffness. However, it is shown by an analytical and numerical study, that the rotational stiffness of two closely spaced, flitch plate DVW connections acting in series remains unchanged if certain conditions are fulfilled. Two full connection tests are performed to confirm the analytical and numerical results. Additionally, the paper presents a comparison to a conventional connection, which confirms the structural quality of the reinforced connection.

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Brandon D, Leijten AJM. Structural performance and advantages of DVW reinforced moment transmitting timber joints with steel plate connectors and tube fasteners. In Aicher S, Reinhardt H-W, Garrecht H, editors, Materials and joints in timber structures : recent developments of technology. Stuttgart: Springer. 2014. p. 255-263. (RILEM Bookseries). https://doi.org/10.1007/978-94-007-7811-5_24