Project title: ME01
Project Description: Fibre optic instrumentation and dynamic monitoring of railway bridges for Norton Bridge, Stafford Area Improvements Programme

Publication title: Evaluating the Early-Age Behaviour of Full-Scale Prestressed Concrete Beams using Distributed and Discrete Fibre Optic Sensors
Authors: Liam J Butler, Niamh Gibbons, Ping H, Campbell Middleton, and Mohammed Elshafie
Author affiliations: Department of Engineering, University of Cambridge, Trumpington St., Cambridge, CB2 1PZ, United Kingdom

General description of data: 

Strain data collected during the casting, curing, detensioning and storage of 4 prestressed concrete bridge beams manufactured at EXPLORE Industrial Plant, Worksop, UK
The data was collected/generated for the ME01 project being carried out in the Department of Engineering at the University of Cambridge. 
The ME01 project is a fibre optic instrumentation and dynamic monitoring programme at Norton Bridge, UK, part of the Stafford Area Improvements Programme. 
The strain data was collected using fibre optic monitoring technologies based on Brillioun Optical Time Domain Reflectometry (BOTDR) and fibre Bragg gratings (FBG).

Date collected/generated:
Location: Worksop and Norton Bridge (Staffordshire), UK

Instrumented elements names: Prestressed concrete beams
Instrumented element type: TY7 (BM2 and BM3) and TYE7 (BM1 and BM9) prestressed concrete beams

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File(s): figure 4 bm2 corrected total strain.csv; figure 4 bm2 mechanical strain.csv; figure 4 bm2 thermal strain.csv; figure 4 bm2 uncorrected total strain.csv
Description: Figure 4. Recorded mechanical strains during curing of BM2
Units: microstrain

Figure 4 has been divided into four separate .csv files.

Column 1 = time (dd/mm/yyyy hh:mm:ss)
Columns 2 to 21 = Top and Bottom strain readings (refer to labels in .csv file)
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File(s): figure5 bm1 mechanical strain.csv; figure5 bm1 thermal strain.csv; figure5 bm1 total strain.csv; figure5 bm1 uncorrected total strain.csv
Description: Figure 5. Recorded mechanical strains during curing of BM1
Units: microstrain

Figure 5 has been divided into four separate .csv files.

Column 1 = time (dd/mm/yyyy hh:mm:ss)
Columns 2 to 21 = Top and Bottom strain readings (refer to labels in .csv file)
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File(s): figure6 bm2 detension.csv
Description: Figure 6. Change in mechanical strain measured with FBG sensors in BM2 (TY7 internal beam) during the detensioning process
Units: microstrain

Column 1 = time (dd/mm/yyyy hh:mm:ss)
Columns 2 to 21 = Top and Bottom strain readings (refer to labels in .csv file)
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File(s): figure7 bm1 detension.csv
Description: Figure 7. Change in mechanical strain measured with FBG sensors in BM1 (TYE7 edge beam) during the detensioning process
Units: microstrain

Column 1 = time (dd/mm/yyyy hh:mm:ss) *Note that data was acquired at 1000 Hz and the .csv file was unable to be reproduced at this resolution.
Columns 2 to 21 = Top and Bottom strain readings (refer to labels in .csv file)
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File(s): figure9 bm2 bottom.csv; figure9 bm2 top.csv
Description: Figure 9. Evolution of the distributed (BOTDR and FBG sensors) strain profile for BM2
Units: microstrain

Figure 9 has been divided into two separate .csv files for the top and bottom of the beams

Rows 1 to 4 = BOTDR strain data: Row 1 = distance along beam, Rows 2 to 177 = strain change across several time steps

Rows 6 to 10 = FBG strain data: Row 6 = distance along beam (location of FBGs sensors), Rows 2 to 11 = strain change across several time steps 

Also refer to labels in .csv file
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File(s): figure10 bm3 bottom.csv; figure10 bm3 top.csv
Description: Figure 10. Evolution of the distributed (BOTDR and FBG sensors) strain profile for BM3
Units: microstrain

Figure 10 has been divided into two separate .csv files for the top and bottom of the beams

Rows 1 to 4 = BOTDR strain data: Row 1 = distance along beam, Rows 2 to 177 = strain change across several time steps

Rows 6 to 10 = FBG strain data: Row 6 = distance along beam (location of FBGs sensors), Rows 2 to 11 = strain change across several time steps 

Also refer to labels in .csv file
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File(s): figure11 bm1 bottom.csv; figure11 bm1 top.csv
Description: Figure 11. Evolution of the distributed (BOTDR and FBG sensors) strain profile for BM1
Units: microstrain

Figure 11 has been divided into two separate .csv files for the top and bottom of the beams

Rows 1 to 4 = BOTDR strain data: Row 1 = distance along beam, Rows 2 to 177 = strain change across several time steps

Rows 6 to 10 = FBG strain data: Row 6 = distance along beam (location of FBGs sensors), Rows 2 to 11 = strain change across several time steps 

Also refer to labels in .csv file
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File(s): figure12 bm9 bottom.csv; figure12 bm9 top.csv
Description: Figure 12. Evolution of the distributed (BOTDR and FBG sensors) strain profile for BM9 
Units: microstrain

Figure 12 has been divided into two separate .csv files for the top and bottom of the beams

Rows 1 to 4 = BOTDR strain data: Row 1 = distance along beam, Rows 2 to 177 = strain change across several time steps

Rows 6 to 10 = FBG strain data: Row 6 = distance along beam (location of FBGs sensors), Rows 2 to 11 = strain change across several time steps 

Also refer to labels in .csv file
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File: Figure14and15_Data.csv
Description: Figures 14 and 15. Total prestress loss results for both sensor measurements and Eurocode 2 calculated values (BM2, BM3, BM1 and BM9)
Units:microstrain and days

First column is days since casting was completed.
Figure 14 = TY7 beams (BM2 and BM3) results - refer to labels in .csv file
Figure 15 = TYE7 beams (BM1 and BM9) results - refer to labels in .csv file

Also refer to labels in .csv file
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File: Figure16_Data.csv
Description: Figure 16. Theoretical and estimated vertical camber measurements based on (a) BOTDR sensor data and (b) FBG sensor data.
Units: millimetres and days

There are six sets of column 'blocks' of data.
First set of columns are the various distance vectors along the length of the beams
Second set of columns is the theoretically calculated camber values at the time of detensioning (DT)
Third, fourth, fifth and six sets correspond to BM2, BM3, BM1 and BM9, respectively.
Column 'blocks' are divided into columns corresponding to a particular event/date such as detensioning=DT, 82 days after casting, etc.
Note that Figure 16(a) is the BOTDR sensor data and 16(b) is the FBG sensor data.

Also refer to labels in .csv file