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

Rebecka Kvist, Oskar Ranefjärd, Hiba Alyaseen, Sven Thelandersson

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Sammanfattning

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.

Originalspråkengelska
Titel på värdpublikationIABSE Symposium Prague, 2022
Undertitel på värdpublikationChallenges for Existing and Oncoming Structures - Report
FörlagInternational Association for Bridge and Structural Engineering
Sidor610-617
Antal sidor8
ISBN (elektroniskt)9783857481833
StatusPublished - 2022
EvenemangIABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures - Prague, Tjeckien
Varaktighet: 2022 maj 252022 maj 27

Publikationsserier

NamnIABSE Symposium Prague, 2022: Challenges for Existing and Oncoming Structures - Report

Konferens

KonferensIABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures
Land/TerritoriumTjeckien
OrtPrague
Period2022/05/252022/05/27

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