APPLICATION ON MEASUREMENT OF PRE-STRESS LOSS IN CONCRETE STRUCTURE WITH FIBER-OPTIC SENSORS

Tang Hongwei, Li Wansheng, Li Yuhong

Abstract

As one of the important works in the pre-stressed concrete structure design, magnitude of the pre-stress loss has not been measured conveniently until now. A suitable measuring technique for pre-stress loss is the studying goal of researcher in a long time. In the present work, the fiber-optic measuring technique has been introduced to measure the pre-stress loss, and all of the measuring works were conducted on the model of a wastewater tank. Result of the measurement shows that optical fiber sensor can be used to measure the pre-stress loss in engineering, and the short-term pre-stress loss of steel strand is strongly effected by the arranging manner of steel strand, the magnitude of pre-stress loss measured in the present work is less than 20%.

Keywords

fiber-optic sensor, pre-stress loss, concrete structure

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IMEKO-TC20-2002-007.pdf

DOI

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IMEKO TC

TC20 - Measurements of Energy and Related Quantities

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