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Shandong Binzhou Yellow River Highway Bridge
Structural Health Monitoring
Shandong Binzhou Yellow River Highway Bridge
Three towers, four spans
84+300+300+84m
PC structure
Rigid and floating support
Open to traffic: July 1, 2004
Health Monitoring System
138 optical fiber strain & temperature sensors
2 anemoscopes
39 accelerometers
1+3GPS
Wireless communication
LabVIEW data acquisition
Damage detection-MATLAB
Structural analysis- ANSYS 7.2
SQL server 2000 database- Website visitor permitted
LabVIEW software platform on-line automatically running & call
1. Sensor sub-system
1
2
14
4
5
6
8
7
9
11
12
13
10
Binzhou
15
16
Tower near the joints
Girder
1) Optical fiber sensors
Sensor
Sensor
Locations Initial wave length Initial T
2) Accelerometers
C
able- 2D and 1D
P
iezo-electric accelerometers (0.1-50Hz), 2Hz
T
ower-2D
S
ervo accelerometers (0-30Hz), 0.17Hz
G
irder-3D, 2D and 1D
C
apacitive accelerometers, 0.25Hz
No.
(
1
)
(
2
)
(
3
)
(
4
)
(
5
)
(
6
)
(
7
)
(
8
)
(
9
)
(
10
)
Member
J10
J12
N26
N24
N22
N20
N18
N16
N14
N12
Parameter (cm)
13.21
15.69
15.69
14.04
14.10
14.16
14.04
14.01
13.46
12.83
Type
LC0156TM
LC0156TM
LC00131M
LC0156TM
LC0156TM
LC0156M
LC0156M
LC0156M
LC0156M
LC0156M
No of sensor
2782
2786
2859
2788
2789
2792
2868
2871
2872
2873
Length of cable/ m
263(268)
250(250)
225×2(225,227)
210(215)
185(187)
180(183)
165(165)
150(155)
135(136)
110(110)
Type of cable
single
single
single
single
single
single
single
single
single
single
No
(
11
)
(
12
)
(
13
)
(
14
)
(
15
)
(
16
)
(
17
)
(
18
)
(
19
)
(
20
)
member
N10
SB0’
SB0
SB5
mid
Mid
CB13
CB8
CB3
M-Tower
Parameter (cm)
12.73
/
/
/
/
/
/
/
/
/
type
LC00131M
LC0156M
LC0156M
LC0156M
B-one-D
B-two-D
B-one-D
LC0156M
LC0156M
B-two-D
No of sensor
2861
2877
2878
2879
2880
2883
Length of cable/m
105×2(105,105)
390(400)
340(350)
275(276)
225
175×2
130
95(80)
55(55)
125×2
Type of cable
single
single
single
single
single
single
single
single
single
single
No
(
21
)
(
22
)
(
23
)
(
24
)
(
25
)
(
26
)
(
27
)
(
28
)
(
29
)
(
30
)
Member
J10
J12
N26
N24
N22
N20
N18
N16
N14
N12
Parameter /cm
13.21
15.69
15.69
14.04
14.10
14.16
14.04
14.01
13.46
12.83
Type of sensor
LC0156TM
LC0156TM
LC00131M
LC0156TM
LC0156TM
LC0156M
LC0156M
LC0156M
LC0156M
LC0156M
No of sensor
2885
2886
2862
2887
2888
2891
2892
2893
2894
2896
Length of cable/m
303/313
290/300
265×2(269,272)
250/250
225/228
220/225
205/215
190/195
175/177
150/155
Type of cable
single
single
single
single
single
single
single
single
single
single
3) Anemoscopes
3D
ultrasonic 81000U
(USA)
WE550
turboanemoscope
4) 1+3GPS
Bank
Topcon
2. Communication sub-system
1) Cable communication
2) Wireless communication
GPS wireless communication
Antenna + network card + network bridge
GPS receiver
Beam antenna
Directional antenna
beam antenna
Beam antenna
Beam antenna
Beam antenna
beam antenna
isotropic antenna
Remote control center
Local control center
3. Data acquisition sub-system
LabVIEW software (NI,USA)
NI (USA) and Advantech (Taiwan)
PXI bus-mastering and RS-485 bus mastering
Data acquisition software
4. Damage detection & safety evaluation sub-system
1) Finite element model
2) Modes & frequencies
Mode
Tower
Transverse
Vertical
Torsion
1
0.171
0.862
0.220
0.363
2
0.173
0.985
0.490
0.788
3
0.506
0.576
0.941
3) Response
4) Damage detection-global
Damaged girder
Close location
Close location
Close location
40 measurable locations
10
measurable locations
4) Damage detection-local
Strain, stress, crack,
deflection, acceleration
>
Corresponding limitation?
Change rate of above variables
Large
Too
Stress and number
Fatigue damage?
—
5. Database sub-system
Structure Analysis
Data Process
Data Acquire
Data Inquire
SQL
Server
2000
Data
Intranet
Database
Server
center
Inquire, print, show
Load
Measured response
Structure and sensor
Dynamics
Healthmodels
Damage models
Safety evaluation
Database
Data
Base
Inquire
打印
Copy
Virus
User
Diary
Data repair
Safety means for data
Safety
6. Control center
(
a
)系统首页界面 (
b
)系统功能区界面 (
c
)数据采集系统界面
Integrated system based-on website
THANK YOU!