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A platform for research: civil engineering, architecture and urbanism
Static and dynamic measurements on a newly developed precast concrete track for high speed railway traffic using embedded fiber-optic sensors
In a German slab track system ('Feste Fahrbahn' FF, system Bögl) for speeds up to 300 km/h and more different fibre optic sensors have been embedded in several levels and locations of the track system. The track system consists of prestressed precast panels of steel fibre concrete which are supported by a cast-in-situ concrete or asphalt base course. The sensors are to measure the bond behaviour or the stress transfer in the track system. For that, tiny fibre-optic sensors - fibre Fabry-Perot and Bragg grating sensors - have been embedded very near to the interface of the layers. Measurements were taken on a full scale test sample (slab track panel of 6.45 m length) as well as on a real high speed track. The paper describes the measurement task and discusses aspects with regard to sensor design and prefabrication of the sensor frames as well as the embedding procedure into the concrete track. Results from static and dynainic full scale tests carried out in the testing laboratory of BAM and from measurements on a track are given.
Static and dynamic measurements on a newly developed precast concrete track for high speed railway traffic using embedded fiber-optic sensors
In a German slab track system ('Feste Fahrbahn' FF, system Bögl) for speeds up to 300 km/h and more different fibre optic sensors have been embedded in several levels and locations of the track system. The track system consists of prestressed precast panels of steel fibre concrete which are supported by a cast-in-situ concrete or asphalt base course. The sensors are to measure the bond behaviour or the stress transfer in the track system. For that, tiny fibre-optic sensors - fibre Fabry-Perot and Bragg grating sensors - have been embedded very near to the interface of the layers. Measurements were taken on a full scale test sample (slab track panel of 6.45 m length) as well as on a real high speed track. The paper describes the measurement task and discusses aspects with regard to sensor design and prefabrication of the sensor frames as well as the embedding procedure into the concrete track. Results from static and dynainic full scale tests carried out in the testing laboratory of BAM and from measurements on a track are given.
Static and dynamic measurements on a newly developed precast concrete track for high speed railway traffic using embedded fiber-optic sensors
Statische und dynamische Messungen an einem neuartigen vorgegossenen Betonunterbau für Hochgeschwindigkeitszüge mit Hilfe eingebetteter faseroptischer Sensoren
Habel, W. (author) / Hofmann, D. (author) / Basedau, F. (author) / Barner, A. (author) / Crail, S. (author) / Reichel, D. (author) / Schreiner, U. (author) / Lindner, E. (author)
2002
6 Seiten, 6 Bilder, 5 Quellen
Conference paper
English
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