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- Monitoring (4)
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- Reliability (3)
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Organisationseinheit der BAM
- 8 Zerstörungsfreie Prüfung (4)
- 8.1 Sensorik, mess- und prüftechnische Verfahren (3)
- 8.6 Faseroptische Sensorik (3)
- 3 Gefahrgutumschließungen; Energiespeicher (1)
- 3.0 Abteilungsleitung und andere (1)
- 6 Materialchemie (1)
- 6.7 Materialsynthese und Design (1)
- 7 Bauwerkssicherheit (1)
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Characterization of bond performance of textiles in cement matrices using fiber optic sensors
(2002)
Fibre optic sensors for monitoring in safety-relevant structures have to be validated in order to proof their reliability under typical structural load conditions. The reliable use of optical fibre sensors depends strongly on an appropriate and qualitative application. Diagnostics of the physical condition of embedded and surface-applied fibre optic strain sensors are demonstrated on field examples. Distributed strain measurement based on Rayleigh backscattering is used to determine breakage of the fibre, interface adhesion problems and to identify application related strain transfer mechanisms.
Static and dynamic pile tests are carried out to determine the load bearing capacity and the quality of reinforced concrete piles. As part of a round robin test to evaluate dynamic load tests, structure integrated fibre optic strain sensors were used to receive more detailed information about the strains along the pile length compared to conventional measurements at the pile head. This paper shows the instrumentation of the pile with extrinsic Fabry-Perot interferometers sensors and fibre Bragg gratings sensors together with the results of the conducted static load test as well as the dynamic load Tests and pile integrity tests.