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Analysis of fiber-optic strain-monitoring data from a prestressed concrete bridge


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Publication Date: 2017-05

Journal Title: Journal of Bridge Engineering

Publisher: American Society of Civil Engineers

Volume: 22

Issue: 5

Number: 05017002

Language: English

Type: Article

This Version: VoR

Metadata: Show full item record

Citation: Webb, G., Vardanega, P., Hoult, N., Fidler, P., Bennett, P., & Middleton, C. (2017). Analysis of fiber-optic strain-monitoring data from a prestressed concrete bridge. Journal of Bridge Engineering, 22 (5. 05017002)https://doi.org/10.1061/(ASCE)BE.1943-5592.0000996

Abstract: This paper presents data from fiber-optic strain monitoring of the Nine Wells Bridge, which is a three-span, pretensioned, prestressed concrete beam-and-slab bridge located in Cambridgeshire in the United Kingdom. The original deployment at the site and the challenges associated with collecting distributed strain data using the Brillouin optical time domain reflectometry (BOTDR) technique are described. In particular, construction and deployment issues of fiber robustness and temperature effects are highlighted. The challenges of interpreting the collected data as well as the potential value of information that may be obtained are discussed. Challenges involved with relating measurements to the expected levels of prestress, including the effects due to debonding, creep, and shrinkage, are discussed and analyzed. This paper provides an opportunity to study whether two commonly used models for creep and shrinkage, adequately model data collected in field conditions.

Sponsorship: This work was supported by the following EPSRC grants: EP/D076870/1, Smart Infrastructure: Wireless Sensor Network System for Condition Assessment and Monitoring of Infrastructure; EP/I019308/1, Innovation Knowledge Centre for Smart Infrastructure and Construction; and EP/K000314/1, Innovation and Knowledge Centre for Smart Infrastructure and Construction - Collaborative Programme Tranche 1.

Identifiers:

External DOI: https://doi.org/10.1061/(ASCE)BE.1943-5592.0000996

This record's URL: https://www.repository.cam.ac.uk/handle/1810/263720



Rights: Attribution 4.0 International

Licence URL: http://creativecommons.org/licenses/by/4.0/





Autor: Webb, GTVardanega, PJHoult, NAFidler, PRABennett, PJMiddleton, CR

Fuente: https://www.repository.cam.ac.uk/handle/1810/263720



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