Abstract
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.
Original language | English |
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Pages (from-to) | 2978-2990 |
Number of pages | 13 |
Journal | Eng |
Volume | 4 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2023 |
Keywords
- buckling-restrained braced frame
- ductility
- dynamic response
- experimental
- passive control
- seismic performance
- steel frame
- tire-derived aggregate
- toughness