Scipediacontent: Scipediacontent moved page Draft Content 384607358 to Perria et al 2021a

2021-11-30T13:40:59Z

Scipediacontent moved page Draft Content 384607358 to Perria et al 2021a

Scipediacontent: Created page with "== Abstract == The present paper describes the first steps of the research project by the title “Repair connection with wooden wedged dowels. New and alternative repair met..."

2021-11-30T13:40:56Z

Created page with "== Abstract == The present paper describes the first steps of the research project by the title “Repair connection with wooden wedged dowels. New and alternative repair met..."

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== Abstract ==

The present paper describes the first steps of the research project by the title “Repair connection with wooden wedged dowels. New and alternative repair method that meets the demands of Monument Protection of built substance’s gentle care and material fairness”. The project aims to develop guidelines for static-constructive use of wood-wood repair connections with wooden wedged dowels.
In the research project, the first steps for the description of the mechanical model for the wooden wedged dowels have been approached. Literature about wooden pegs and dowels and built examples of wooden wedged dowels in existing buildings have been analyzed; more, preliminary laboratory tests and FEM simulations have been implemented.In this paper, the results of the preliminary laboratory tests and the parallel development of a FEM model with the aim of describing the deformation behavior of the wooden wedged dowels for the most used wooden species will be presented. The main aims are: a) Analysis of the distribution of the strains / deformations in the dowel and in the connected building components when inserting the wedge. b) Analysis of the risk of opening of cracks in the materials. c) Analysis of distribution of stresses in the dowel and in the connected building elements utilizing FEM modeling calibrated on the experimental results.
Thanks to the evaluation of deformation behavior in the proposed geometrical configuration
and material combinations of wedge, dowel and connected building elements, it has been
possible to understand the general framework of deformation behavior and failure modes for
different combinations of timber density of the connection components.

== Full document ==
<pdf>Media:Draft_Content_384607358p819.pdf</pdf>
== References ==

[1] ICOMOS ISCARSAH (2017). Principles for the conservation of wooden built heritage Adopted by the 19th ICOMOS General Assembly, New Delhi, India, 15 December 2017.

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[3] Gerner M. Entwicklung von Holzverbindungen Forschungs- und Untersuchungs ergebnisse, Fraunhofer IRB Verlag, (2000).

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[5] Blaas H.J., Ehlbeck J., Kreuzinger H., Steck G. Erläuterungen zu DIN 1052: 2004-08. Entwurf, Berechnung und Bemessung von Holzbauwerken. 2. Aufl. Deutsche Gesellschaft für Holzforschung. München und Karlsruhe: DGfH Innovations- und Service GmbH, Bruder, (2005).

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[7] Ehlbeck J., Hättich R. Tragfähigkeit und Verformungsverhalten von ein- und zweischnittig beanspruchten Holznägeln. In: Erhalten historisch bedeutsamer Bauwerke - Jahrbuch 1988, SFB 315, Universität Karlsruhe, Wilhelm Ernst & Sohn Verlag für Architektur und Technische Wissenschaften, Berlin, (1989).

[8] Görlacher R. Empfehlungen für die Praxis. In: Historische Holztragwerke (Untersuchen, Berechnen und Instandsetzten), SFB 315, Universität Karslruhe, (1999).

[9] Holzer S. M. Statische Beurteilung historischer Tragwerke - Band 2 | Holzkonstruktionen. Ernst & Sohn, (2015).

[10] Kessel M., Augustin R. Untersuchung der Tragfähigkeit von Holzverbindungen mit Holznägeln für Sanierung und Rekonstruktion von alter Bausubstanz. Forschungsbericht, FH Hildesheim/Holzminden, Fachbereich Bauingenieurwesen, Labor für Holztechnik, Hildesheim, (1992).

[11] Kessel M., Augustin R. Untersuchung der Tragfähigkeit von Holzverbindungen mit Holznägeln. In: Bauen mit Holz, 96 (1994), Pp. 484–487.

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[14] DIN EN 1995-1-1 / NA: 2013-08 National Annex – Nationally determined parameters – Eurocode 5: Design of timber structures – Part 1.1: General – Common rules and rules for buildings. Normenausschuss Bauwesen (NABau) im DIN, (August 2013).

[15] SIA 269/5:2011, Existing Structures – Timber Structures. Swiss Society of Engineers and Architects, Zurich, Switzerland.

[16] DIN EN 338:2016-07 Structural timber - Strength classes.

[17] Niemz P., Sonderegger W. Holzphysik. Physik des Holzes und der Holzwerkstoffe. Fachbuchverlag Leipzig im Carl Hanser Verlag, (2017). P. 275.

[18] Clorius, C. O., Damkilde, L., Hoffmeyer, P. Fatigue in Wood: An investigation in tension perpendicular to the grain. BYG-Rapport; No. R-038 Kgs. Lyngby, Denmark: Technical University of Denmark (DTU), (2001).

[19] Kollmann F. Technologie des Holzes und Holzwerkstoffe. Erster Band. Springer Verlag, (1951). Pp. 667-669.

[20] DIN EN 408:2012-10 Timber structures - Structural timber and glued laminated timber -Determination of some physical and mechanical properties

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Scipediacontent: Scipediacontent moved page Draft Content 384607358 to Perria et al 2021a

Scipediacontent: Created page with "== Abstract == The present paper describes the first steps of the research project by the title “Repair connection with wooden wedged dowels. New and alternative repair met..."