h-m of a long span bridge
TRANSCRIPT
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HH--M of a Long Span BridgeM of a Long Span Bridge
Case Study Case Study -- 11
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Field Studies at CBBField Studies at CBB
Sensor Installation at Tower
Preparation of the Pier Cabinet for DAQ
Rock Climbing Gear
Data Acq. During Damper Testing
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CBB Instrumentation Map for the CBB Instrumentation Map for the Phenomena to be MeasuredPhenomena to be Measured
Pier W2
Pier W1
Pier E1
Pier E2
PP45
PP36PP27
PP08
ACB
D
E
F G
HJ
Toll Plaza
Total Data Channels = 485
K
Video CameraWind Sensor
WIM
PHENOMENATraffic
Weather
MEASURANDImageSpeed & WeightAir TemperatureRelative Humidity
Wind Speed & Dir.
SENSOR
Solar Radiation
Bridge Responses
Live Load StrainsEnviron. Strains
DisplacementsTiltsAccelerations
Video CameraWIM System
Temperature
Ultrasonic Wind
Weather Station
Q.B. Strain GageV.W. Strain Gage
V.W. CrackmeterV.W. TiltmeterCap. Accelerometer
Thermistor
QTY4
2 Lanes
4
1
56148
173616
201
LOCATIONSD , E J
K,
G
E , G ,C , D E, F,A , C D, E F J, , ,A , C D, E F G J, , , ,A , D F, J,A , C D, F G J, , ,B , D F, H,
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CBB Instrumentation LANCBB Instrumentation LAN
Administration Building
Bridge Module(LabVIEW)
Data ServerModule
(LabVIEW)
Short Haul Modem
Direct Copper
Internet (T1)Fiber LAN
Campbell CR10X
Optim MEGADAC
Handar 555C
Sony EVI
Weigh-In-Motion
Administration Building
Internet
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Static and Crawl Speed Load TestStatic and Crawl Speed Load Test
5-7 mph
0 10 20 30 40 50 60 70-5
0
5
10
15
20
25
30
35
PP27
panel points
Str
ain
(mic
rost
rain
)
L1
PP36
South Hanger Strains (L1)
13'-0"13'-0" 11'-4" 11'-4" 11'-4"
987654321
N 1 2 3 4 5 S
Stringer
Time (sec) and Position of Load
Str
ain
(m
icro
stra
in)
14000 200 400 600 800 1000 1200-50
0
50
100
150
200
250
PP26
1'
PP26
PP25
NorthSouth
L1
Stringer 8
PP25
Repeatability Check
L.C. 1 ( Crane A)
L.C. 7 ( Crane A+B)
L.C. 7 ( Crane A)
L.C. 4 ( Crane A)
Single Crane During Crawl Speed Test
Static Test DataFor Stringer b/wPP25-PP26
Crawl Speed TestData for Influence Line Generation