%A Amir Hossein HEIDARI, Sadegh ETEDALI, Mohamad Reza JAVAHERI-TAFTI %T A hybrid LQR-PID control design for seismic control of buildings equipped with ATMD %0 Journal Article %D 2018 %J Front. Struct. Civ. Eng. %J Frontiers of Structural and Civil Engineering %@ 2095-2430 %R 10.1007/s11709-016-0382-6 %P 44-57 %V 12 %N 1 %U {https://journal.hep.com.cn/fsce/EN/10.1007/s11709-016-0382-6 %8 2018-03-08 %X

This paper presents an efficient hybrid control approach through combining the idea of proportional-integral-derivative (PID) controller and linear quadratic regulator (LQR) control algorithm. The proposed LQR-PID controller, while having the advantage of the classical PID controller, is easy to implement in seismic-excited structures. Using an optimization procedure based on a cuckoo search (CS) algorithm, the LQR-PID controller is designed for a seismic- excited structure equipped with an active tuned mass damper (ATMD). Considering four earthquakes, the performance of the proposed LQR-PID controller is evaluated. Then, the results are compared with those given by a LQR controller. The simulation results indicate that the LQR-PID performs better than the LQR controller in reduction of seismic responses of the structure in the terms of displacement and acceleration of stories of the structure.