SEISMIC PERFORMANCE OF STEEL MOMENT-RESISTING FRAME RETROFITTED WITH LINEAR AND NONLINEAR VISCOUS DAMPERS

2019 ◽  
Author(s):  
Bryan CHALARCA ◽  
André FILIATRAULT ◽  
André PERRONE
Keyword(s):  
Seismic Performance ◽  
Viscous Dampers ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Linear And Nonlinear ◽  
Steel Moment Resisting Frame

Seismic Performance of Steel MRF Structures with Nonlinear Viscous Dampers from Real-Time Hybrid Simulations

2018 ◽  
Vol 763 ◽  
pp. 967-974 ◽  
Author(s):  
Bai Ping Dong ◽  
Richard Sause ◽  
James M. Ricles
Keyword(s):  
Real Time ◽  
Seismic Performance ◽  
Phase 1 ◽  
Base Shear ◽  
Viscous Dampers ◽  
Reduced Beam Section ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Two Phases ◽  
Steel Mrf

Real-time hybrid earthquake simulations (RTHS) were performed on steel moment-resisting frame (MRF) structures with nonlinear viscous dampers. The test structures for the RTHS contain a moment-resisting frame (MRF), a frame with nonlinear viscous dampers (DBF), and a gravity load system with associated seismic mass and gravity loads. The MRFs have reduced beam section beam-to-column connections and are designed for 100%, 75%, and 60%, respectively, of the base shear strength required by ASCE 7-10. RTHS were performed to evaluate the seismic performance of these MRF structures. Two phases of RTHS were conducted: (Phase-1) the DBF is the experimental substructure in the laboratory; and (Phase-2) the DBF with the MRF is the experimental substructure. Results from the two phases of RTHS are evaluated. The evaluation shows that the RTHS provide a realistic and accurate simulation of the seismic response of the test structures. The evaluation also shows that steel MRF structures designed with reduced strength and with nonlinear viscous dampers can have excellent seismic performance.

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