Seismic Effectiveness of Piezoelectric Friction Fampers for Peak Response Reduction of Building Structures
The performance of a piezoelectric friction damper (PFD) and a semi-active control algorithm was evaluated with 1/4-scale, 3-story building model that was subjected to four earthquake ground motions of various intensities. For shake table tests, the damper was installed between the first floor of the building and the shake table. Both numerical and experimental results indicated that the proposed control strategy cann effectively suppress the structural vibration equally under weak and strong earthquakes. It was found that a semi-active PFD with slight saturation is beneficial to the mitigation of building responses while significant saturation tends to degrade the performance of the control strategy. Further improvement in force generation efficiency of the PFD would likely make it competitive with other representative semiactive control devices.
G. Chen and C. Chen, "Seismic Effectiveness of Piezoelectric Friction Fampers for Peak Response Reduction of Building Structures," Proceedings of the 13th World Conference on Earthquake Engineering Conference Proceedings, Aug 2004.
13th World Conference on Earthquake Engineering Conference Proceedings
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Earthquake Dampers; Piezoelectricity; Seismic Phenomena; Structural Vibration
Article - Conference proceedings