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This study proposes a method for performance based design of a Linked Fluid Inertia Mass Damper(LFIMD). In this study, we regard high-performance as exerting inertia force relatively greater than viscous damping force. First, we study how damper’s performance depends on link tube specifications. The test shows it is necessary for stable performance to ensure the rigidity of the tube. Next, we try to improve the performance through two methods. The first one is to use high density fluid, the second one is to reduce the viscosity of the fluid. We construct a theoretical formula for calculating the inertia force and viscous damping force in order to confirm the effectiveness of the method. We also conducted a series of experiments, confirming two methods are effective. Finally, we conducted a shaking table test to demonstrate how the negative stiffness works to improve seismic response control performance. The test shows that increasing inertia force is advantageous to reducing acceleration response.

EXPERIMENTAL STUDY ON PERFORMANCE DESIGN METHOD FOR LINKED FLUID INERTIA MASS DAMPER