Cyclic Response of Buckling-Restrained Stainless Steel Energy Dissipating Bars. II: Finite Element Investigations
Publication: Journal of Engineering Mechanics
Volume 149, Issue 4
Abstract
The first phase of experiments presented in Part I of this study is used to calibrate the 3D finite element (FE) modelling procedure of the tested fuse-type filler-injected buckling-restrained stainless steel energy dissipaters (EDs). The models are generated using a combined continuum-macro FE approach. A discussion is provided on the selection and calibration of material models. Sensitivity analyses are performed to investigate the effects of mesh sizes, imperfection shape and size, contact stiffness and friction coefficient on the cyclic response. After validating the FE analysis results against those obtained from the experiments, a parametric study is conducted with the objective of quantifying the required stiffness of the restraining system to avoid global-level buckling. At the end, an idealized elastic-perfectly plastic model with equivalent energy dissipation property is proposed for use in macro models.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The research reported herein was sponsored by the Natural Sciences and Engineering Research Council (NSERC) of Canada under the Collaborative Research and Development (CRD) grant program, and several industrial partners including the Canadian Institute of Steel Construction (CISC), Rapid Span Structures Ltd., S-FRAME Software Inc., Emil Anderson Construction Inc., and Klohn Crippen Berger Ltd. The support provided by UBC Advanced Research Computing, Digital Research Alliance of Canada, and CMC Microsystems is gratefully acknowledged.
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Published In
Journal of Engineering Mechanics
Volume 149 • Issue 4 • April 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Sep 7, 2022
Accepted: Jan 5, 2023
Published online: Feb 1, 2023
Published in print: Apr 1, 2023
Discussion open until: Jul 1, 2023
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