Mechanical Behavior of Glued Laminated Bamboo Moment-Resisting Connections
Publication: Journal of Structural Engineering
Volume 149, Issue 1
Abstract
Glued laminated bamboo (glubam) moment-resisting connections, in the forms of bamboo-steel-bamboo (BSB) and steel-bamboo-steel (SBS) connections, were studied in this research. The monotonic and cyclic loading experiments with two types of bamboo panels, unidirectional and multidirectional laminated bamboo, were performed. Test results demonstrated that the off-axis embedment behaviors of bamboo panels significantly influence the mechanical properties of glubam moment-resisting connections. The brittle splitting/shear failure modes can be avoided by using multidirectional laminated bamboo panels. The ultimate bearing strength of the multidirectional laminated bamboo connections was 2.5 times that of the unidirectional one. The application of multidirectional laminated bamboo rather than the unidirectional one in moment-resisting connections significantly improved the energy dissipated ability and ductility ratios from 1.5 to 1.9. Thus, the multidirectional panels were suggested to be used for the structural components with complex stress fields. Methods were also suggested to determine the test curves’ initial stiffness and yield moment points. A simplified calculation method of moment-resisting capacities based on the European yield model (EYM), considering the off-axis embedment strength of glubam boards, was suggested for design purposes at the end of this research.
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Data Availability Statement
All data used and analyzed during this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was done with the support of the National Natural Science Foundation of China (51978606) and Zhejiang UAE Research Center Project (KH20203315C).
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Published In
Journal of Structural Engineering
Volume 149 • Issue 1 • January 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: May 4, 2022
Accepted: Sep 1, 2022
Published online: Nov 7, 2022
Published in print: Jan 1, 2023
Discussion open until: Apr 7, 2023
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