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Numerical Study of Seismic Performance of Steel Moment Resisting Frame with Buckling Restrained Brace and Viscous Fluid Damper
Published in Taylor & Francis
Volume: 8.0
Issue: 3.0
Pages: 165.0 - 174.0
The seismic performance assessment of modified steel moment-resisting frame (SMRF) was carried out by nonlinear time-history analysis. The basic bare SMRF was reduced in strength first and then enhanced by installing passive energy dissipating devices (EDDs) to develop modified frame. Passive EDDs comprise both rate-dependent and rate-independent devices. Viscous fluid damper (VFD) is a rate-dependent device whereas buckling-restrained brace is a rate-independent device. The lateral strength of structure was improved by using these devices either alone or in combination. Seven-scaled time-history records were used for incremental dynamic analysis. The stiffness effect on the stories is demonstrated through the lateral displacement profile of the building. The VFD is found to be a good EDD as it significantly improved the performance of the frame at all levels of seismic analysis.
About the journal
JournalIES Journal Part A: Civil and Structural Engineering
PublisherTaylor & Francis
Open Access0