Numerical Investigation of the Seismic Performance of an Innovative Type of Buckling-Restrained Brace (BRB)

Previous studies have demonstrated that the inclusion of tire-derived aggregate (TDA) enhances the damping, ductility, and toughness of concrete mixtures. The effectiveness of tire-derived aggregate as a ductile material with a higher damping ratio and lower density in buckling-restrained braces has...

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Bibliographic Details
Published in:Eng (Basel, Switzerland) Switzerland), 2023-12, Vol.4 (4), p.2978-2990
Main Authors: Naghshineh, Ali, Fischer, Oliver, Pathan, Nasreen B., Couch, Logan, Tehrani, Fariborz M.
Format: Article
Language:English
Subjects:
Bracing
Buckling
buckling-restrained braced frame
Cement
Concrete aggregates
Damping ratio
Ductility
Earthquakes
Effectiveness
experimental
Inelastic materials
Mechanical properties
Rubber
seismic performance
Seismic response
Shear strength
Shear tests
steel frame
Tensile strength
tire-derived aggregate
Tires
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Summary:Previous studies have demonstrated that the inclusion of tire-derived aggregate (TDA) enhances the damping, ductility, and toughness of concrete mixtures. The effectiveness of tire-derived aggregate as a ductile material with a higher damping ratio and lower density in buckling-restrained braces has been examined at California State University’s Structures Laboratory (CSU). Through experimental and theoretical investigations, this study compares the structural application of buckling-restrained braces with TDA and with conventional concrete infill subjected to various ground motions as well as artificial excitations. The evaluations include modeling a full-scale experimental setup equipped with a single-leg BRB utilizing ETABS 2016 and OpenSees 2000 software. The effectiveness of the application is demonstrated through a comparison of accelerations, displacements, stiffness, and damping ratios between TDA and concrete filling. Additionally, a design guideline for TDA-filled buckling-restrained braced frames is provided.
ISSN:2673-4117
2673-4117
DOI:10.3390/eng4040167