Open Access

Structural Health Monitoring System of a Concrete Cable-Stayed Bridge

Jan BILISZCZUK
Jan BILISZCZUK
, 
Paweł HAWRYSZKÓW
Paweł HAWRYSZKÓW
 and 
Marco TEICHGRAEBER
Marco TEICHGRAEBER
   | Mar 02, 2022
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Published Online: Mar 02, 2022
Page range: 69 - 77
Received: Jun 25, 2017
Accepted: Oct 04, 2018
DOI: https://doi.org/10.21307/acee-2018-055
Keywords
© 2018 Jan Biliszczuk et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

View of the Rędziński Bridge [www.golowersilesia.pl]
View of the Rędziński Bridge [www.golowersilesia.pl]

Figure 2.

General view of the Rędziński Bridge
General view of the Rędziński Bridge

Figure 3.

View of the Rędziński Bridge model in the SHM application. It shows a virtual location of each sensor [1]
View of the Rędziński Bridge model in the SHM application. It shows a virtual location of each sensor [1]

Figure 4.

Measuring scheme of the Rędziński Bridge [4]
Measuring scheme of the Rędziński Bridge [4]

Figure 5.

The monthly average forces in case of the longest stay-cables W40-PZ/F and W40-PW/F
The monthly average forces in case of the longest stay-cables W40-PZ/F and W40-PW/F

Figure 6.

The monthly average forces in case of the shortest stay-cables W1-LW/F and W1-LZ/F
The monthly average forces in case of the shortest stay-cables W1-LW/F and W1-LZ/F

Figure 7.

Change of the monthly average force in cables, in each row
Change of the monthly average force in cables, in each row

Figure 8.

Forces change between 3/04/2016 and 16/4/2016 in four random cable-stays – a diagram generated using the SHM application
Forces change between 3/04/2016 and 16/4/2016 in four random cable-stays – a diagram generated using the SHM application

Figure 9.

Sensors in the pylon’s cross-beam
Sensors in the pylon’s cross-beam

Figure 10.

Monthly average values of stress in concrete for the northern outside cross-beam surface
Monthly average values of stress in concrete for the northern outside cross-beam surface

Figure 11.

Monthly average values of stress in steel for the northern outside cross-beam surface
Monthly average values of stress in steel for the northern outside cross-beam surface

Figure 12.

The monthly average temperature in cables, deck and pylon
The monthly average temperature in cables, deck and pylon

Figure 13.

Two weeks temperature changes in the concrete deck sensors
Two weeks temperature changes in the concrete deck sensors

Figure 14.

Two weeks temperature changes in the pylon’s cross-beam (in concrete and in steel elements)
Two weeks temperature changes in the pylon’s cross-beam (in concrete and in steel elements)

Measured and allowed angular displacements

Sensor Minimum displacement Maximum displacement Maximum designed displacement
P0-L/Tt/Y -0.01° 0.10° 1.09°
P0-P/Tt/Y -0.01° 0.05° 1.09°
P17-L/Tt/Y -0.06° 0.08° 2.74°
P17-P/Tt/Y -0.06° 0.08° 2.74°
P30-L/Tt/X -0.09° 0.09° 0.85°
P30-L/Tt/Y -0.06° 0.04° 1.47°
P30-P/Tt/X -0.11° 0.08° 0.85°
P30-P/Tt/Y -0.12° 0.12° 1.47°

Extreme temperatures in each element

Element Minimum temperature [°C] (February 2015) Maximum temperature [°C] (August 2015)
Cables -20.89 44.37
Pylon -9.05 36.03
Deck -12.72 33.97

Comparison of average monthly forces

Sensor Average force, August 2011 Average force, December 2015 Difference Percent change
[kN] [kN] [kN]
W1-LZ/F 1784 1658 -126 -7.0%
W1-LW/F 1433 1237 -196 -13.7%
W4-LZ/F 3121 3007 -114 -3.6%
W4-LW/F 3001 2921 -80 -2.7%
W6-LZ/F 3290 2756 -533 -16.2%
W6-LW/F 3229 3254 24 0.8%
W8-LZ/F 3669 3590 -79 -2.2%
W8-LW/F 3771 3758 -13 -0.4%
W10-LZ/F 4572 4675 103 2.3%
W10-LW/F 4482 4419 -62 -1.4%
W12-LZ/F 4898 4907 9 0.2%
W12-LW/F 4441 4384 -57 -1.3%
W14-LZ/F 5781 5580 -200 -3.5%
W14-LW/F 5493 5362 -131 -2.4%
W16-LZ/F 5262 4972 -290 -5.5%
W16-LW/F 5428 5220 -208 -3.8%
W18-LZ/F 5253 4932 -322 -6.1%
W18-LW/F 5018 4681 -337 -6.7%
W20-LZ/F 3135 2934 -202 -6.4%
W20-LW/F 2966 2716 -250 -8.4%
Sensor Average force, August 2011 Average force, December 2015 Difference Percent change
[kN] [kN] [kN]
W21-LZ/F 1740 1528 -212 -12.2%
W21-LW/F 1380 1185 -196 -14.2%
W24-LZ/F 3111 3033 -78 -2.5%
W24-LW/F 3025 2930 -95 -3.1%
W26-LZ/F 3305 3206 -99 -3.0%
W26-LW/F 3229 3006 -223 -6.9%
W28-LZ/F 3714 3572 -142 -3.8%
W28-LW/F 3670 3614 -56 -1.5%
W30-LZ/F 4744 4658 -86 -1.8%
W30-LW/F 4570 4438 -132 -2.9%
W32-LZ/F 4918 4697 -221 -4.5%
W32-LW/F - - - -
W34-LZ/F - - - -
W34-LW/F 5759 5448 -310 -5.4%
W36-LZ/F 5263 5005 -258 -4.9%
W36-LW/F 5614 5233 -381 -6.8%
W38-LZ/F 5254 4832 -421 -8.0%
W38-LW/F 5281 4928 -353 -6.7%
W40-LZ/F 3202 2825 -376 -11.8%
W40-LW/F 3448 3041 -408 -11.8%
Sensor Average force, August 2011 Average force, December 2015 Difference Percent change
[kN] [kN] [kN]
W1-PZ/F - 1524 - -
W1-PW/F - 1304 - -
W4-PZ/F 3051.3 3001 -50.1 -1.6%
W4-PW/F 3069.3 2993 -76.5 -2.5%
W6-PZ/F 3591.8 3625 33.7 0.9%
W6-PW/F 3253.1 3116 -136.7 -4.2%
W8-PZ/F 3596.8 3643 46.4 1.3%
W8-PW/F 3550.4 3595 44.8 1.3%
W10-PZ/F 4794.7 4823 27.8 0.6%
W10-PW/F 4448.6 4368 -81.1 -1.8%
W12-PZ/F 4869.1 4764 -104.6 -2.1%
W12-PW/F 4722.2 3696 -1026.7 -21.7%
W14-PZ/F 5579.0 5599 20.2 0.4%
W14-PW/F 5598.2 5455 -143.5 -2.6%
W16-PZ/F 5183.5 4987 -196.8 -3.8%
W16-PW/F 5374.6 5241 -133.9 -2.5%
W18-PZ/F 5285.3 5022 -263.5 -5.0%
W18-PW/F 5323.7 5072 -251.5 -4.7%
W20-PZ/F 3199.6 2959 -240.4 -7.5%
W20-PW/F 2952.4 2701 -251.6 -8.5%
Sensor Average force, August 2011 Average force, December 2015 Difference Percent change
[kN] [kN] [kN]
W21-PZ/F 1279 1064 -215 -16.8%
W21-PW/F 1455 1266 -189 -13.0%
W24-PZ/F 3088 603 -2485 -80.5%
W24-PW/F 3028 2954 -74 -2.4%
W26-PZ/F 3458 3316 -141 -4.1%
W26-PW/F 3426 3443 17 0.5%
W28-PZ/F 3610 3619 9 0.2%
W28-PW/F 3614 3679 65 1.8%
W30-PZ/F 4532 4641 108 2.4%
W30-PW/F 4745 4650 -96 -2.0%
W32-PZ/F 904 4893 3988 441.0%
W32-PW/F 4942 4849 -93 -1.9%
W34-PZ/F 5664 5497 -167 -2.9%
W34-PW/F 5668 5460 -208 -3.7%
W36-PZ/F 5437 5172 -265 -4.9%
W36-PW/F 5352 4726 -626 -11.7%
W38-PZ/F 5220 4981 -239 -4.6%
W38-PW/F 5134 4979 -155 -3.0%
W40-PZ/F 3029 2718 -312 -10.3%
W40-PW/F 3303 3010 -293 -8.9%
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