On the usage of piezoelectric plates in active seismic control of steel structures

The main purpose of this research is to investigate the possibility of using piezoelectric plates for active control of a number of steel Moment Resisting Frames (MRF) under seismic loading .In this research،responses of ۳ structural models with different numbers of stories and bays are studied. Piezoelectric plates which connected to different beams and columns have been used for applying the control forces. For this purpose, Sap۲۰۰۰ software used for preparing the structural models and MATLAB software used for calculation of control forces and preparation of OAPI codes for linking Sap۲۰۰۰ and MATLAB soft wares to each other. The obtained results indicated that active control of MRF structures by application of piezoelectric plates, resulted in impressive reduction of structural responses including story Drift Ratios and story Absolute Accelerations in all cases. Finally by introducing design parameter of” ”, optimal placements of piezoelectric plates determined.

Keywords:

Active Control , Piezoelectric Plates , Dynamic Time History Analysis , Moment Resisting Frame (MRF)