Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32677
Title: Integrated vibration control and health monitoring of building structures using semi-active friction dampers : part II - numerical investigation
Authors: Chen, B
Xu, YL 
Keywords: Damper stiffness
Feasibility study
Incomplete measurement information
Measurement noise
Performance assessment
Issue Date: 2008
Publisher: Pergamon Press
Source: Engineering structures, 2008, v. 30, no. 3, p. 573-587 How to cite?
Journal: Engineering structures 
Abstract: An integrated procedure for model updating, vibration control and damage detection of a building structure using semi-active friction dampers has been presented in part I of this paper. The feasibility of the proposed procedure and the practical issues of its application are investigated numerically in this accompanying paper. The model updating scheme is first applied to an example building to identify its structural parameters. The effects of measurement noise, incomplete measurement information and damper stiffness on the quality of model updating are evaluated. The control performance of seismic response of the example building using the semi-active friction dampers manipulated by a local feedback control strategy with a Kalman filter is then assessed through comparisons with the same local feedback control strategy but without the Kalman filter and with a global feedback control strategy. The optimum damper stiffness suitable for both model updating and vibration control is also determined. Finally, two damage scenarios are presented to ascertain the accuracy of the damage detection scheme for different damage severities and locations with and without noise contamination. The additional comparison is made between the proposed damage detection scheme and the traditional sensitivity approach. The numerical results demonstrate the feasibility of the proposed integrated procedure.
URI: http://hdl.handle.net/10397/32677
ISSN: 0141-0296
EISSN: 1873-7323
DOI: 10.1016/j.engstruct.2007.03.006
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