Frequency independent damped outrigger systems for multi‐mode seismic control of super tall buildings with frequency independent negative stiffness enhancement

Damped outrigger system is effective for improving energy dissipation for tall buildings. However, conventional damped outrigger (CDO) system with viscous damping has two limitations: (i) its maximum damping ratio cannot be improved when outrigger/column stiffness is inadequate; (ii) different modes...

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Bibliographic Details
Published in:Earthquake engineering & structural dynamics 2023-07, Vol.52 (9), p.2731-2754
Main Authors: Wang, Meng, Sun, Fei‐Fei, Koetaka, Yuji, Chen, Lin, Nagarajaiah, Satish, Du, Xiu‐Li
Format: Article
Language:English
Subjects:
damped outrigger
Dampers
Damping
Damping ratio
Energy dissipation
Energy exchange
Frequency analysis
frequency‐independency
Modes
multi‐mode vibration
negative stiffness
Ratios
Seismic response
Stiffness
tall building
Tall buildings
Vibration
Vibrations
Viscous damping
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