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Integration of Health Monitoring and Control of Building Structures Due to Earthquake

J. SHAN, H. T. Y. YANG, W. SHI

Abstract


A hybrid real-time structural health monitoring and control system for building structures is presented in this study. The first objective of the hybrid system is to detect the damage occurrence, location, and severity through an proposed interstory based acceleration feedback method. The second objective of the hybrid system is to maintain the desired response defined from the pre-designed healthy reference model contained in the health monitors through the use of an actuator in the damaged region. A model-reference adaptive control algorithm for the decoupled substructures was then developed and integrated with the interstory drift based acceleration feedback method for health monitoring. Little or no prior information about current health condition of the structure is required by the proposed adaptive control algorithm. The local adaptive feedback control actuates the actual substructures to track the desired response signals. Result obtained by numerical simulations for the illustrative example in this study shows the detection of the damages, the asymptotically tracking of the state of the substructure, and convergence of the time-varying parameters in the adaptive controller.

Keywords


Structural dynamics; Building structures; Adaptive control; Health monitoring; EarthquakeText

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