Experimental Verification of Acceleration Feedback Control Strategies for Seismic Protection

B.F. Spencer Jr., S.J. Dyke and M.K. Sain


Abstract

Many agree that the next generation of control research for civil engineering applications must focus on developing systems that are more implementable. One necessary condition for a control strategy to be implementable is that it must use the available measured responses to determine the control action. Of the structural responses that can be directly observed, one of the easiest to obtain is acceleration. Acceleration feedback control strategies utilizing acceleration responses have been developed and experimentally verified for three different control actuator configurations. In each of these experiments, accelerometers located on the three floors of the structure provided the primary measurements of the structural response used to determine control action. This paper provides a summary of these experimental efforts to show that acceleration feedback control strategies are effective, robust and practically implementable.

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