Characterization of Filler-Free Buckling Restrained Fuse-Type Energy Dissipation Device for Seismic Applications
Publication: Journal of Structural Engineering
Volume 146, Issue 5
Abstract
The grooved-type dissipater is an axial, metal hysteretic dissipative device. It is an alternative to the epoxy- or grout-filled buckling restrained fuse (BRF)-type dissipater. This device consists of a mild steel rod which has grooves milled into it to reduce the cross-sectional area to form the fuse. A thick-walled circular hollow section (antibuckling tube) covers the fuse length and prevents global inelastic buckling of the fuse in compression. The advantage of this device is that it consists of only two parts and does not require the use of expensive grout or epoxy filler. This paper describes a state-of-the-art device, presented formulations describing important geometric properties and discussed their engineering implications, presented experimental and numerical investigations undertaken to characterize the low-cycle fatigue life of the grooved dissipater, and obtained coefficients to model this phenomenon using either the Fatigue material in OpenSees or the well-known Coffin–Manson equation and Palmer–Milgren damage rule.
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Acknowledgments
The authors thank the University of Canterbury Quake Centre and the Natural Hazards Research Platform for providing research funding; technician Gavin Keats for manufacture of the dissipaters; Alan Poynter for his contributions to testing; and Sam White, Kaveh Andisheh, Mustafa Mashal, and Zeinab Chegini for provision of invaluable test data used in the research presented in this contribution.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 5 • May 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Feb 18, 2019
Accepted: Oct 1, 2019
Published online: Feb 27, 2020
Published in print: May 1, 2020
Discussion open until: Jul 27, 2020
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