FR3084741B1 - PROCESS FOR DETERMINING THE DEFORMATION OF A CONCRETE STRUCTURE OVER TIME - Google Patents

PROCESS FOR DETERMINING THE DEFORMATION OF A CONCRETE STRUCTURE OVER TIME Download PDF

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Publication number
FR3084741B1
FR3084741B1 FR1857234A FR1857234A FR3084741B1 FR 3084741 B1 FR3084741 B1 FR 3084741B1 FR 1857234 A FR1857234 A FR 1857234A FR 1857234 A FR1857234 A FR 1857234A FR 3084741 B1 FR3084741 B1 FR 3084741B1
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FR
France
Prior art keywords
deformation
concrete structure
coil
measurements
determining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1857234A
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French (fr)
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FR3084741A1 (en
Inventor
Jacques Jabbour
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Radioprotection et de Surete Nucleaire (IRSN)
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Institut de Radioprotection et de Surete Nucleaire (IRSN)
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Priority to FR1857234A priority Critical patent/FR3084741B1/en
Publication of FR3084741A1 publication Critical patent/FR3084741A1/en
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
    • G01M11/086—Details about the embedment of the optical fiber within the DUT

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un procédé d'acquisition de mesures de déformation d'une structure de béton, coulée dans un coffrage contenant un support, le procédé comprenant les étapes suivantes : émission d'un signal optique dans un serpentin de fibre optique porté par le support et s'étendant au moins partiellement selon une direction longitudinale, acquisition de mesures de déformation de la structure de béton en une pluralité de points de mesure du serpentin, le serpentin étant au contact de l'intérieur de la structure de béton, lesdites mesures correspondant à la déformation des points de mesure du serpentin selon la direction longitudinale, et étant acquises par analyse spectrale d'un signal rétrodiffusé par diffusion Rayleigh et d'un signal rétrodiffusé par diffusion Raman associés au signal optique préalablement émis.The invention relates to a method for acquiring deformation measurements of a concrete structure, cast in a formwork containing a support, the method comprising the following steps: emission of an optical signal in an optical fiber coil carried by the support and extending at least partially in a longitudinal direction, acquisition of measurements of deformation of the concrete structure at a plurality of measurement points of the coil, the coil being in contact with the interior of the concrete structure, said measurements corresponding to the deformation of the measurement points of the coil in the longitudinal direction, and being acquired by spectral analysis of a signal backscattered by Rayleigh scattering and of a signal backscattered by Raman scattering associated with the optical signal previously emitted.

FR1857234A 2018-08-02 2018-08-02 PROCESS FOR DETERMINING THE DEFORMATION OF A CONCRETE STRUCTURE OVER TIME Active FR3084741B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1857234A FR3084741B1 (en) 2018-08-02 2018-08-02 PROCESS FOR DETERMINING THE DEFORMATION OF A CONCRETE STRUCTURE OVER TIME

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1857234A FR3084741B1 (en) 2018-08-02 2018-08-02 PROCESS FOR DETERMINING THE DEFORMATION OF A CONCRETE STRUCTURE OVER TIME

Publications (2)

Publication Number Publication Date
FR3084741A1 FR3084741A1 (en) 2020-02-07
FR3084741B1 true FR3084741B1 (en) 2021-05-21

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ID=63963193

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1857234A Active FR3084741B1 (en) 2018-08-02 2018-08-02 PROCESS FOR DETERMINING THE DEFORMATION OF A CONCRETE STRUCTURE OVER TIME

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FR (1) FR3084741B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0912851D0 (en) * 2009-07-23 2009-08-26 Fotech Solutions Ltd Distributed optical fibre sensing
FR2975184B1 (en) * 2011-05-13 2013-07-05 Andra DETECTOR OF CHEMICAL SPECIES WITH A VIBRATION ROPE
FR2983812B1 (en) * 2011-12-09 2015-06-05 Sateba Systeme Vagneux INSTRUMENT CONCRETE BRACKET FOR RAILWAY RAILS
FR2996634B1 (en) * 2012-10-08 2014-12-12 Electricite De France DEVICE FOR MEASURING DEFORMATIONS ALONG WITH AT LEAST ONE OPTICAL FIBER, USE OF OPTICAL FIBER FOR DEFORMATION MEASUREMENT AND METHOD FOR MEASURING DEFORMATIONS
FR3014552B1 (en) * 2013-12-05 2019-08-09 Agence Nationale Pour La Gestion Des Dechets Radioactifs DEVICE FOR MONITORING THE DEFORMATION OF A WORK, USE OF AN OPTICAL FIBER AND SURVEILLANCE METHOD PARTICULARLY ADAPTED TO IRRADIATED ENVIRONMENTS
AU2014385118B2 (en) * 2014-03-05 2017-04-06 Fujitsu Limited Abnormality detection system and abnormality detection method
SE540549C2 (en) * 2014-06-30 2018-09-25 Commw Scient Ind Res Org Deformation measurement method and apparatus

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Publication number Publication date
FR3084741A1 (en) 2020-02-07

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