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Investigating out-of-plane strength & stiffness of a nailed glulam connection

Kvist, Rebecka ; Ranefjärd, Oskar LU ; Alyaseen, Hiba and Thelandersson, Sven LU (2022) IABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures In IABSE Symposium Prague, 2022: Challenges for Existing and Oncoming Structures - Report p.610-617
Abstract

During March 2020 a large-span arena, Tarfalahallen, collapsed. The main load-bearing girders with a 54 m span were high and slender glulam trussed beams, supported from below by a cable system via vertical struts. Investigations concluded that the failure was initiated by out-of-plane buckling of the struts and slender beam, in spite of lateral stabilization by steel roof sheeting at the top edge of the beam and by glulam rods at the lower end of the strut where the cable system was attached. The nailed connection between strut and main glulam beam was not stiff enough to prevent buckling. In this study a nailed connection similar to that used in the arena, though on a smaller scale, was tested under combined bending and axial loading.... (More)

During March 2020 a large-span arena, Tarfalahallen, collapsed. The main load-bearing girders with a 54 m span were high and slender glulam trussed beams, supported from below by a cable system via vertical struts. Investigations concluded that the failure was initiated by out-of-plane buckling of the struts and slender beam, in spite of lateral stabilization by steel roof sheeting at the top edge of the beam and by glulam rods at the lower end of the strut where the cable system was attached. The nailed connection between strut and main glulam beam was not stiff enough to prevent buckling. In this study a nailed connection similar to that used in the arena, though on a smaller scale, was tested under combined bending and axial loading. The biaxial testing simulates vertical loading in the strut combined with out-of-plane loading created by second order effects. It was found that the out-of-plane stiffness is reduced when vertical loading is at high levels.

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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
biaxial, experimental testing, lateral stabilization, lateral torsional buckling, nailed joint, out-of-plane stiffness, Tarfalahallen
host publication
IABSE Symposium Prague, 2022 : Challenges for Existing and Oncoming Structures - Report - Challenges for Existing and Oncoming Structures - Report
series title
IABSE Symposium Prague, 2022: Challenges for Existing and Oncoming Structures - Report
pages
8 pages
publisher
International Association for Bridge and Structural Engineering
conference name
IABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures
conference location
Prague, Czech Republic
conference dates
2022-05-25 - 2022-05-27
external identifiers
  • scopus:85133506984
ISBN
9783857481833
language
English
LU publication?
yes
id
ea03ce5a-656f-4d6c-9313-51b2648e95a9
date added to LUP
2022-10-14 15:49:03
date last changed
2023-10-06 11:34:57
@inproceedings{ea03ce5a-656f-4d6c-9313-51b2648e95a9,
  abstract     = {{<p>During March 2020 a large-span arena, Tarfalahallen, collapsed. The main load-bearing girders with a 54 m span were high and slender glulam trussed beams, supported from below by a cable system via vertical struts. Investigations concluded that the failure was initiated by out-of-plane buckling of the struts and slender beam, in spite of lateral stabilization by steel roof sheeting at the top edge of the beam and by glulam rods at the lower end of the strut where the cable system was attached. The nailed connection between strut and main glulam beam was not stiff enough to prevent buckling. In this study a nailed connection similar to that used in the arena, though on a smaller scale, was tested under combined bending and axial loading. The biaxial testing simulates vertical loading in the strut combined with out-of-plane loading created by second order effects. It was found that the out-of-plane stiffness is reduced when vertical loading is at high levels.</p>}},
  author       = {{Kvist, Rebecka and Ranefjärd, Oskar and Alyaseen, Hiba and Thelandersson, Sven}},
  booktitle    = {{IABSE Symposium Prague, 2022 : Challenges for Existing and Oncoming Structures - Report}},
  isbn         = {{9783857481833}},
  keywords     = {{biaxial; experimental testing; lateral stabilization; lateral torsional buckling; nailed joint; out-of-plane stiffness; Tarfalahallen}},
  language     = {{eng}},
  pages        = {{610--617}},
  publisher    = {{International Association for Bridge and Structural Engineering}},
  series       = {{IABSE Symposium Prague, 2022: Challenges for Existing and Oncoming Structures - Report}},
  title        = {{Investigating out-of-plane strength & stiffness of a nailed glulam connection}},
  year         = {{2022}},
}