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Evaluating the In-Plane Shear Capacity of Tongue-and-Groove Panels

Ranefjärd, Oskar LU ; Thelandersson, Sven LU ; Estlund, Jacob ; Ruhr, Ludvig and Persson, Maxine (2025) IABSE Symposium Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches In IABSE Symposium Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report p.2779-2787
Abstract

This study evaluates the in-plane shear capacity of timber tongue-and-groove (TG) panels commonly used for roof structures in Nordic countries. Experimental tests, including shear and racking strength assessments, were conducted to investigate the in-plane capacity and the contribution of corrugated fasteners (pins) to structural performance. Racking strength tests demonstrated improved load-bearing capacity in panelised configurations, with reinforced TG panels achieving almost diaphragm action, though not as stiff as plywood. Shear tests showed a linear increase in capacity with additional pins, with each pin contributing 1 kN. Results revealed limitations in existing theoretical models, which overestimate failure loads by neglecting... (More)

This study evaluates the in-plane shear capacity of timber tongue-and-groove (TG) panels commonly used for roof structures in Nordic countries. Experimental tests, including shear and racking strength assessments, were conducted to investigate the in-plane capacity and the contribution of corrugated fasteners (pins) to structural performance. Racking strength tests demonstrated improved load-bearing capacity in panelised configurations, with reinforced TG panels achieving almost diaphragm action, though not as stiff as plywood. Shear tests showed a linear increase in capacity with additional pins, with each pin contributing 1 kN. Results revealed limitations in existing theoretical models, which overestimate failure loads by neglecting deformation. Findings highlight the importance of fasteners in improving strength, providing valuable insights for safer timber construction.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Experimental, In-plane capacity, Nordic buildings, Racking strength, Roof stabilisation, Timber construction, Tongue-and-groove panels
host publication
IABSE Symposium Tokyo 2025 : Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report - Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report
series title
IABSE Symposium Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report
pages
9 pages
publisher
International Association for Bridge and Structural Engineering
conference name
IABSE Symposium Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches
conference location
Tokyo, Japan
conference dates
2025-05-18 - 2025-05-21
external identifiers
  • scopus:105008752799
ISBN
9783857482069
DOI
10.2749/tokyo.2025.2779
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2025 IABSE Symposium Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report All rights reserved.
id
267d289c-181d-4595-bb46-4d3d06084f58
date added to LUP
2026-01-21 13:21:54
date last changed
2026-01-21 15:11:36
@inproceedings{267d289c-181d-4595-bb46-4d3d06084f58,
  abstract     = {{<p>This study evaluates the in-plane shear capacity of timber tongue-and-groove (TG) panels commonly used for roof structures in Nordic countries. Experimental tests, including shear and racking strength assessments, were conducted to investigate the in-plane capacity and the contribution of corrugated fasteners (pins) to structural performance. Racking strength tests demonstrated improved load-bearing capacity in panelised configurations, with reinforced TG panels achieving almost diaphragm action, though not as stiff as plywood. Shear tests showed a linear increase in capacity with additional pins, with each pin contributing 1 kN. Results revealed limitations in existing theoretical models, which overestimate failure loads by neglecting deformation. Findings highlight the importance of fasteners in improving strength, providing valuable insights for safer timber construction.</p>}},
  author       = {{Ranefjärd, Oskar and Thelandersson, Sven and Estlund, Jacob and Ruhr, Ludvig and Persson, Maxine}},
  booktitle    = {{IABSE Symposium Tokyo 2025 : Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report}},
  isbn         = {{9783857482069}},
  keywords     = {{Experimental; In-plane capacity; Nordic buildings; Racking strength; Roof stabilisation; Timber construction; Tongue-and-groove panels}},
  language     = {{eng}},
  pages        = {{2779--2787}},
  publisher    = {{International Association for Bridge and Structural Engineering}},
  series       = {{IABSE Symposium Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches - Report}},
  title        = {{Evaluating the In-Plane Shear Capacity of Tongue-and-Groove Panels}},
  url          = {{http://dx.doi.org/10.2749/tokyo.2025.2779}},
  doi          = {{10.2749/tokyo.2025.2779}},
  year         = {{2025}},
}