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Proceedings Paper

Detecting damage in a building structure model under seismic excitation
Author(s): Jun Ma; Darryll J. Pines
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Paper Abstract

This paper uses a damage detection approach based on dereverberated transfer functions. In 1D structures, conventional reverberated transfer functions are formed because of the interactions between incident and reflected waves in structures. By applying virtual controllers to eliminate wave reflections, dereverberated transfer functions can be obtained. Dereverberated transfer functions provide good representation of a structure's local dynamics. Because local dynamics are more sensitive to parameter changes, the dereverberated transfer function appears to be suitable to infer structural damage. In this study, a three- story building model is tested under seismic wave excitation. Experimental results show that this approach can be used to locate damage, determine damage type, and quantify damage extent.

Paper Details

Date Published: 30 July 2001
PDF: 9 pages
Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); doi: 10.1117/12.434111
Show Author Affiliations
Jun Ma, Univ. of Maryland/College Park (United States)
Darryll J. Pines, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 4330:
Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu, Editor(s)

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