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Smart Structures and Systems Volume 5, Number 4, July 2009 , pages 397-413 DOI: https://doi.org/10.12989/sss.2009.5.4.397 |
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Diagnostic/prognostic health monitoring system and evaluation of a composite bridge |
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A. Mosallam, R. Miraj and F. Abdi
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| Abstract | ||
| Composite bridges offer many advantages compared to current steel and aluminum bridges. This paper presents the results of a comprehensive on-going research program to develop innovative Diagnostic Prognostic System (DPS) and a structural evaluation of Composite Army Bridge (CAB) system. The DPS is founded on three technologies: optical fiber sensing, remote data transmission, and virtual testing. In developing this system, both laboratory and virtual test were used in different damage scenarios. Health monitoring with DPS entailed comparing live strain data to archived strained data in various bridge locations. For field repairs, a family of composite chords was subjected to simple ramp loads in search of ultimate strength. As such, composite bridge specimens showcased their strengths, heralded the viability of virtual testing, highlighted the efficacy of field repair, and confirmed the merits of health monitoring. | ||
| Key Words | ||
| health monitoring; fiber optical sensors; progressive failure analysis; composite bridge; diagnostic prognostic system; repair. | ||
| Address | ||
| A. Mosallam and R. Miraj; University of California, Civil and Environmental Engineering Department, Irvine, CA 92697, U.S.A. F. Abdi; AlphaSTAR Corporation, Long Beach, CA 90804, U.S.A. | ||