Abstract—In this paper, a systematic tuning procedure for a fractional order PD controller for seismic mitigation is proposed. The tuning is based upon reducing the magnitude of the compensated system at the resonance frequency as compared to the magnitude of the uncompensated structure. For simplicity, a laboratory scale 1DOF (one degree of freedom) steel structure is used as the case study, The simulation results considering the El Centro earthquake accelerograms show that the designed control strategy is highly suitable for solving seismic mitigation of steel structures and ensures improved response in comparison with steel structures equipped with passive protection. 
 

Index Terms—seismic mitigation, fractional order controller, robustness

Cite: Ovidiu Prodan, Isabela R. Birs, Silviu Folea, and Cristina I. Muresan, "Seismic Mitigation in Civil Structures Using a Fractional Order PD Controller," International Journal of Structural and Civil Engineering Research, Vol. 5, No. 2, pp. 93-96, May 2016. doi: 10.18178/ijscer.5.2.93-96