Numerical investigation of effectiveness of two seismic dampers on a benchmark structure

Abstract

The passive energy dissipation devices have been widely applied in seismic control of new constructions and reinforcement of seismic damage structures. The technique of passive energy dissipation has been written into the China Seismic Code for Buildings, which can give an impulse to the use and development of this technique. With the international common performance evaluation platform of structural vibration control – the third stage of benchmark, using three models and some performance evaluation indices of nonlinear vibration control, the control results of buildings with displacement-based and velocity-based dampers were compared. Combining the passive control of structures with the modern control theory, using MATLAB/SIMULINK to establish simulation models of the structures with displacement-based and velocity-based dampers, the responses of three benchmark structure models were calculated under far- and near-field earthquakes. Control effect is compared for different types of dampers on different structures through different evaluation indices, which can provide a certain criterion of reference for the application and design of the passive energy dissipation dampers.