TY - GEN
T1 - Investigating out-of-plane strength & stiffness of a nailed glulam connection
AU - Kvist, Rebecka
AU - Ranefjärd, Oskar
AU - Alyaseen, Hiba
AU - Thelandersson, Sven
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - biaxial
KW - experimental testing
KW - lateral stabilization
KW - lateral torsional buckling
KW - nailed joint
KW - out-of-plane stiffness
KW - Tarfalahallen
UR - http://www.scopus.com/inward/record.url?scp=85133506984&partnerID=8YFLogxK
M3 - Paper in conference proceeding
AN - SCOPUS:85133506984
T3 - IABSE Symposium Prague, 2022: Challenges for Existing and Oncoming Structures - Report
SP - 610
EP - 617
BT - IABSE Symposium Prague, 2022
PB - International Association for Bridge and Structural Engineering
T2 - IABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures
Y2 - 25 May 2022 through 27 May 2022
ER -