Field Test of Strain Fluctuation in the Experimental Reactive Powder Concrete Bridge at Shepherd's Creek

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Abstract
The newly built bridge made of novel reactive powder concrete at Shepherd's Creek, Lake Macquarie, NSW is tested for static strain activity over a two-day period. We developed a fibre grating-based experimental strain sensing system and employed an active interrogation scheme using a tuneable laser source. Four FBG sensor heads are surface-mounted in the middle of a girder and under the bridge deck to monitor the strain and temperature movement. The strain sensors have a resolution of approximately 1.5. The observed strain fluctuations, which indicate the hogging and sagging behaviour of the bridge, are in agreement with the theoretical expectation.
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Author(s)
Childs, Paul
Whitbread, Trevor
Wong, Allan
Gowripalan, N
Peng, Gang-Ding
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Publication Year
2005
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Conference Paper
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UNSW Faculty
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download 2005-ACOFT-543-545-Emir.PDF 645.45 KB Adobe Portable Document Format
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