Experimental Study on Building Mass Damper Using Optimum Dynamic Response Control Algorithm

Experimental Study on Building Mass Damper Using Optimum Dynamic Response Control Algorithm

To overcome the concern of limited response reduction due to insufficient tuned mass in the conventional tuned mass damper(TMD) design, the design method and seismic performance of the building mass damper(BMD) system are analytically and numerically discussed in this preliminary study. In this research, a simplified three-lumped-mass structural model, simulating superstructure, control layer and substructure, represents a building with the BMD system. The objective function for the BMD design is determined by the dynamic response control of both the substructure and superstructure. Considering appropriate system parameters, the optimum parameters for the BMD system are derived. Then by applying the shaking table test, a series of shaking table tests will be performed to verify the feasibility of the BMD concept and the effectiveness of the optimum BMD design on seismic protection of buildings. Based on the research results, the BMD design method can reduce responses of both superstructure and superstructure effectively.