Experimental and Numerical Column Buckling Analysis of Hardwood Cross-Laminated Timber Panels
Publication: Journal of Structural Engineering
Volume 150, Issue 5
Abstract
This paper investigates experimentally and numerically the buckling behavior of three-layered cross-laminated timber (CLT) panels under in-plane axial compression. The main aim is to assess the panels’ ultimate limit load and their typical failure mechanisms. A total of 14 specimens were tested. Seven of them were homogeneous (HO series), entirely made of beech, whereas the others were hybrid (HB series), made of beech (outer layers) and Corsican pine (inner layer). The tests gave evidence of a rather stable column buckling capacity for CLT panels, with evidence of major failure mode due to bending. In some cases, rolling shear and delamination were highlighted as additional failure mechanisms. Finally, further assessment of experimental evidence is provided by extended analytical calculations (based on existing formulations, including the Eurocode 5 approach) and even finite-element (FE) numerical analyses for the examined three-layer CLT compositions. Comparative results are discussed in terms of structural performance, capacity, and weakness of analytical models for CLT solutions.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This work was funded by Italian Ministry of University and Research–PRIN 2015, Grant No. 2015YW8JWA_002. The authors would like to thank the Pagano Srl and Xlam Dolomiti Srl for the manufacturing of CLT Panels and Enzo Mattaini from AkzoNobel Coatings Spa for the valuable help and advice.
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Published In
Journal of Structural Engineering
Volume 150 • Issue 5 • May 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Jan 17, 2023
Accepted: Nov 14, 2023
Published online: Feb 20, 2024
Published in print: May 1, 2024
Discussion open until: Jul 20, 2024
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