Paper
20 April 1995 Design and evaluation of passive and active structural health monitoring systems for bridges and buildings
Bruce D. Westermo, Larry D. Thompson
Author Affiliations +
Abstract
Structural health monitoring systems have been designed and evaluated in the laboratory for installation in several bridges and commercial buildings. The systems employ solid-state sensor elements which experience a strain-dependent phase transformation from a metastable, nonmagnetic, austenitic phase to the stable, ferromagnetic, martensitic phase. The irreversible phase transformation is useful for indicating the level of peak structural strain experienced in a particular monitored location. Some of the sensor material characteristics and details related to the phase transformation are discussed as applied to structural health monitoring. The design of representative systems for bridges and commercial buildings is included. Important system(s) features and design capabilities are discussed. Finally, the evaluation of passive and active systems in the laboratory is discussed. The results of experiments detailing the behavior of these systems under uniaxial tension and cyclic loading conditions are presented.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bruce D. Westermo and Larry D. Thompson "Design and evaluation of passive and active structural health monitoring systems for bridges and buildings", Proc. SPIE 2446, Smart Structures and Materials 1995: Smart Systems for Bridges, Structures, and Highways, (20 April 1995); https://doi.org/10.1117/12.207743
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Cited by 9 scholarly publications.
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KEYWORDS
Sensors

Bridges

Structural health monitoring

Buildings

Earthquakes

Ferromagnetics

Chemical elements

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