The Applications of Displacement-Based Design on Structural Control

The Applications of Displacement-Based Design on Structural Control

According to equivalent linear systems, this study presents a preliminary displacement-based design(DBD) procedure for seismic retrofit of existing buildings using tuned mass damper(TMD) under the specified seismic loading. The design procedure will result in well control of the design displacement while obtaining the acceleration of the roof under the specified seismic loading. The optimum design of the TMD provided by many references would be used in the design procedure. The design results are compared with those computed from the dynamic inelastic time history analyses. It is shown from nonlinear time-history analyses that the maximum nonlinear responses of the retrofitted building with TMD can be reasonably captured by the presented method. This paper also shows the methods of modeling TMD by using the SAP2000N and PISA3D nonlinear analysis programs. These numerical results are compare with the result from the shaking table test, and summaries some conclusions.