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

被引：1
作者：
Naghshineh, Ali [1 ]
Fischer, Oliver [1 ]
Pathan, Nasreen B. [2 ]
Couch, Logan [2 ]
Tehrani, Fariborz M. [2 ]
机构：
[1] Tech Univ Munich TUM, Sch Engn & Design Concrete & Masonry Struct, D-80290 Munich, Germany
[2] Calif State Univ, Dept Civil & Geomat Engn, Fresno, CA 93740 USA
来源：
ENG | 2023年 / 4卷 / 04期
关键词：
tire-derived aggregate; seismic performance; experimental; steel frame; buckling-restrained braced frame; ductility; toughness; passive control; dynamic response; CRUMB RUBBER; CONCRETE; STRENGTH;
D O I：
10.3390/eng4040167
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：2978 / 2990
页数：13
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