Active Vibration Control of Buildings with Smart Structure Using Large-Scale Piezoelectric Actuators

Abstract

Applicability of a smart structure using piezoelectric actuators was investigated for active control of wind-induced vibration of buildings in which piezoelectric actuators of stack type were attached to the bottom parts of the columns for their bending moment control. A large-scale piezoelectric actuator consisting of 30 piezoceramic plates of a 100 mm×100 mm×5 mm^H outer size was fabricated and tested, showing satisfactory results that the maximum displacement under a 196 kN initial compressive load was 94×10^-6 m, and the maximum force under zero displacement condition was 270 kN, when a 3.0 kV voltage was input. Simulation studies showed that the smart structure using the large-scale piezoelectric actuators could have almost the same performance as a current active mass damper for an actual 9-story building of a 30.65 m height and a 273 t total mass.