bridge health monitoring presentation final-mtcbridge health monitoringbridge health monitoring...
TRANSCRIPT
![Page 1: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/1.jpg)
MTC Seminar February 6, 2004
Bridge Health Monitoring Bridge Health Monitoring Past, Present and FuturePast, Present and Future
Bridge Engineering CenterIowa State University
![Page 2: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/2.jpg)
Bridge Health MonitoringBridge Health MonitoringBridge Health Monitoring
Measurement and evaluation of bridge performance – Destructive and nondestructive (NDE)
measurements– Continuous or single day monitoring– Remote or on site monitoring
![Page 3: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/3.jpg)
Health Monitoring ObjectiveHealth Monitoring ObjectiveHealth Monitoring Objective
Identify damage or deteriorationProvide quantitative data for:– Assessing extent of damage/deterioration– Evaluating structural performance– Developing remedy (repair, strengthening)– Improving design/construction procedure– Bridge management
![Page 4: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/4.jpg)
Structural Health Monitoring at ISU -- Short-term MonitoringStructural Health Monitoring at Structural Health Monitoring at ISU ISU ---- ShortShort--term Monitoringterm Monitoring
Safe load carrying capacity (rating)Development of design proceduresIdentify damageValidate design procedure and identify damageAssess damage and evaluate remedy
![Page 5: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/5.jpg)
Structural Health Monitoring at ISU -- Long-term MonitoringStructural Health Monitoring at Structural Health Monitoring at ISU ISU ---- LongLong--term Monitoringterm Monitoring
Smart structure technology – WIS DOTFracture critical bridge monitoring –IHRBInnovative bridge long-term performance assessment –FHWA/Iowa DOT
![Page 6: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/6.jpg)
Hoan Bridge in WisconsinHoanHoan Bridge in WisconsinBridge in Wisconsin
![Page 7: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/7.jpg)
Learning from failures!Learning from failures!Learning from failures!December 15, 1967 - collapse of the Silver Bridge46 fatalitiesEyebar/pin failure
![Page 8: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/8.jpg)
Learning from failures!Learning from failures!Learning from failures!
1968 - National BridgeInspection Program initiated
Inspect, rate, and inventory all highway bridges
Visual Inspection –predominant NDE technique
![Page 9: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/9.jpg)
Bridge Load RatingBridge Load RatingBridge Load Rating
![Page 10: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/10.jpg)
![Page 11: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/11.jpg)
![Page 12: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/12.jpg)
![Page 13: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/13.jpg)
NDE??NDE??NDE??
![Page 14: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/14.jpg)
NDE??NDE??NDE??
![Page 15: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/15.jpg)
Historic Concrete BridgesHistoric Concrete BridgesHistoric Concrete Bridges
![Page 16: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/16.jpg)
Marsh Arch BridgesMarsh Arch BridgesMarsh Arch Bridges
![Page 17: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/17.jpg)
![Page 18: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/18.jpg)
![Page 19: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/19.jpg)
![Page 20: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/20.jpg)
26.226.01
36.536.02
Bridge 2Bridge 1
53.652.03
Total load (kips)Load
Increment
![Page 21: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/21.jpg)
![Page 22: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/22.jpg)
Laboratory Results
0
20
40
60
80
100
120
0 1 2 3 4 5
Floor Beam 5
Tota
l Loa
d, k
ips
Deflection, in.
![Page 23: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/23.jpg)
Bridge 1 Rating SummaryBridge 1 Rating SummaryBridge 1 Rating Summary
--0.94Slab
2.871.18Beams
5.472.19Hangers
ModifiedRating
(RF)
AASHTOLRFD (RF)
2.114.14Arches
HS20 Rating VehicleElement
RF (Rating Factor)
< 1 is NG
> 1 is OK
![Page 24: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/24.jpg)
![Page 25: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/25.jpg)
Hardwired strain gages
Wireless truck position indicator
Engineering based data interpretation
Structural modeling
Model analysis and optimization with field collected data
Accurate Assessment
![Page 26: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/26.jpg)
Diagnostic Testing of a BridgeDiagnostic Testing of a BridgeDiagnostic Testing of a Bridge
Boone County Bridge #11 on L Road38 ft - 10 in. single spanEight girders with timber deckDamaged exterior girder
![Page 27: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/27.jpg)
L4 L8
L10
L9
L3
L2
L1
L7
L6
L5
L14 L18
L20
L19
L13
L12
L11
L17
L16
L15Abutment Bearing
L SouthCAbutment Bearing
CL North
2'-6" 2'-6"19'-5"
Section- Instrumented
9'-5.5" 9'-11.5"
Y18'-10.6"
![Page 28: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/28.jpg)
Test Results-Minimal End RestraintTest ResultsTest Results--Minimal End Minimal End RestraintRestraint
-250-200-150-100
-500
50100150200250
0 10 20 30 40 50 60 70
Truck Position, ft
Mic
rost
rain
Botto m Flang e, Lo cat io n L4Top Flang e, Locat ion L4Botto m Flang e, Lo cat io n L8Top Flang e, Locat ion L8
![Page 29: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/29.jpg)
![Page 30: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/30.jpg)
Typical Modeling ResultsTypical Modeling ResultsTypical Modeling Results
-250-200-150-100
-500
50100150200250
0 10 20 30 40 50 60 70
Truck Position, ft
Mic
rost
rain
Botto m Flang e Analyt icalTop Flang e Analyt icalBo tto m Flang e ExperimentalTop Flang e Experimental
![Page 31: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/31.jpg)
Bridge Rating SummaryBridge Rating SummaryBridge Rating Summary
1.310.92Bending
Load Test Results (RF)
AASHTOCalculations
(RF)
HS20 Rating VehicleAll
BridgeElements
RF (Rating Factor)
< 1 is NG
> 1 is OK
![Page 32: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/32.jpg)
Superload EvaluationSuperloadSuperload EvaluationEvaluation
Six pre-stressed concrete girder linesCritical span~ 122 ft.40 ft. roadwaycarrying twolanes of traffic
![Page 33: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/33.jpg)
![Page 34: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/34.jpg)
Preliminary testing (2 dump trucks)Preliminary testing (2 dump trucks)Preliminary testing (2 dump trucks)
Experimental vs. Analytical
![Page 35: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/35.jpg)
Analysis with SuperloadAnalysis with Analysis with SuperloadSuperloadOptimized model used to predict bridge behavior to anticipatedloadDetermined to be acceptable
![Page 36: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/36.jpg)
Monitoring During PassageMonitoring During PassageMonitoring During Passage
![Page 37: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/37.jpg)
Accuracy of PredictionAccuracy of PredictionAccuracy of Prediction
![Page 38: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/38.jpg)
Development of Design ProceduresDevelopment of Design ProceduresDevelopment of Design Procedures
![Page 39: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/39.jpg)
![Page 40: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/40.jpg)
![Page 41: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/41.jpg)
![Page 42: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/42.jpg)
![Page 43: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/43.jpg)
Identification of DamageIdentification of DamageIdentification of Damage
![Page 44: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/44.jpg)
Overheight vehicleimpact
14.20 17.00 13.00
Beam 1
Beam 11
Abutment Pier 1 Pier 2 Abutment
Diaphragm
![Page 45: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/45.jpg)
![Page 46: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/46.jpg)
![Page 47: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/47.jpg)
![Page 48: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/48.jpg)
Static Load TestSSttaticatic Load TestLoad Test
![Page 49: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/49.jpg)
Collected DataCollected DataCollected Data
DeflectionsExposed strand strains
![Page 50: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/50.jpg)
Accelerometer LocationsAccelerometer LocationsAccelerometer Locations
Damage
![Page 51: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/51.jpg)
FrequenciesFrequenciesFrequencies
Mode Span DAMAGED INTACT RatioFirst bending Intermediate 6.42 6.78 95%First torsional Intermediate 6.77 6.90 98%First bending 14.20 meter 8.02 8.08 99%First torsional 14.20 meter 8.20 8.28 99%
![Page 52: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/52.jpg)
Mode Shape CorrelationMMoode Shape Correlationde Shape Correlation
}){}})({{}({}){}({
}){},({2
Yj
TYj
Xi
TXi
Yj
TXiY
jX
iMACφφφφ
φφφφ =
Mode MAC First bending 0.83 First torsional 0.34 First bending 0.99 First torsional 0.95 Bending longitudinal and transverse 0.94 First bending 0.99 First torsional 0.99 Bending longitudinal and transverse 0.95 Second bending 0.99 Second torsional 0.99
![Page 53: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/53.jpg)
Validate Design and Identify DamageValidate Design and Identify DamageValidate Design and Identify Damage
![Page 54: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/54.jpg)
![Page 55: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/55.jpg)
92 m 152 m
115
Bridge LaunchingBridge LaunchingBridge Launching
![Page 56: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/56.jpg)
92 m 152 m
15
![Page 57: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/57.jpg)
92 m 152 m
1538 1
![Page 58: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/58.jpg)
92 m 152 m 168 m
38
![Page 59: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/59.jpg)
Launching is Serious BusinessLaunching is Serious BusinessLaunching is Serious Business
![Page 60: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/60.jpg)
Launching Pit Excavated at East AbutmentLaunching Pit Excavated at East Launching Pit Excavated at East AbutmentAbutment
![Page 61: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/61.jpg)
Roadway Section (each deck)Roadway Section (each deck)Roadway Section (each deck)
12 000 Roadway12 000 Roadway
3600 3600 3600 3600 3600 3600 (3 @ 11’(3 @ 11’--10”)10”)
(39’(39’--4”)4”)
![Page 62: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/62.jpg)
Girders Assembled in Launching PitGirders Assembled in Girders Assembled in Launching PitLaunching Pit
![Page 63: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/63.jpg)
![Page 64: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/64.jpg)
![Page 65: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/65.jpg)
![Page 66: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/66.jpg)
![Page 67: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/67.jpg)
- mom. region (typ.)
Assess Damage and Evaluate RemedyAssess Damage and Evaluate RemedyAssess Damage and Evaluate Remedy
![Page 68: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/68.jpg)
![Page 69: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/69.jpg)
New Bridges-Weld or bolt to top flange
Existing Bridges-Loosen Bolts in connection
![Page 70: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/70.jpg)
![Page 71: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/71.jpg)
0 2 4 6 8 10-600
-400
-200
0
Str
ain,
µin
/in
Time, sec.
G1TG G12G G13G G14G G15G
0 2 4 6 8 10-600
-400
-200
0
Str
ain,
µin
/in
Time, sec.
G1TG G12G G13G G14G G15G
![Page 72: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/72.jpg)
Remote Sensing-PerformanceRemote SensingRemote Sensing--PerformancePerformance
![Page 73: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/73.jpg)
G1TG
G15G
G12G G13G G14G
0 2 4 6 8 10 12 14 16-250
-200
-150
-100
-50
0
50
100
Str
ain,
µin
/in
Time, sec
G1TG G12G G13G G14G G15G
0 2 4 6 8 10 12 14 16-250
-200
-150
-100
-50
0
50
100
Str
ain,
µin
/in
Time, sec
G1TG G12G G13G G14G G15G
![Page 74: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/74.jpg)
DOT Sep. Oct. Nov. Dec.0
-20
-160
-180
-200
Str
ain,
µin
/in
Load Truck
LB2 G12G
DOT Dec. Jan. Feb. Mar.0
-20
-160
-180
-200
Str
ain,
µin
/inLoad Truck
LB2 G12G
![Page 75: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/75.jpg)
Remote Sensing-SecurityRemote SensingRemote Sensing--SecuritySecurity
![Page 76: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/76.jpg)
Remote Sensing-HealthRemote SensingRemote Sensing--HealthHealth
![Page 77: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/77.jpg)
SHM-What the Future HoldsSHMSHM--What the Future HoldsWhat the Future Holds
![Page 78: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/78.jpg)
The Future of SHM, at ISU, is NowThe Future of SHM, at ISU, is The Future of SHM, at ISU, is NowNow
Innovative sensors.Data handling techniques.Client-based information presentation.
![Page 79: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/79.jpg)
Health Monitoring of a High-Performance Steel BridgeHealth Monitoring of a HighHealth Monitoring of a High--Performance Steel BridgePerformance Steel Bridge
![Page 80: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/80.jpg)
Health Monitoring of a High-Performance Steel BridgeHealth Monitoring of a HighHealth Monitoring of a High--Performance Steel BridgePerformance Steel Bridge
Purpose of monitoring:– Assess long-term performance
» Changes with time.» Structural characteristics.
– Measure and quantify fatigue loadings.– Assess serviceability associated with
“lighter” design.
![Page 81: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/81.jpg)
East 12th Street Health-Monitoring SystemEast 12East 12thth Street HealthStreet Health--Monitoring Monitoring SystemSystem
Components:– 30 FBG optical sensors.– Swept laser interrogator (Unix based).– Web server.– Data collection server (DCS).– Data storage server (DSS).– Video camera.– Wireless networking components.
![Page 82: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/82.jpg)
Client
Web Server
Data Storage Server
ModemSi425WAP
Router
WAP
Video
Internet
Data Collection Server
Bridge Engineering Center
Bridge Site
FBG Sensors
Gateway
![Page 83: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/83.jpg)
WAN/LAN GatewayWAN/LAN GatewayWAN/LAN Gateway
ModemWAPRouter
VideoData Collection Server
![Page 84: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/84.jpg)
WAN/LAN GatewayWAN/LAN GatewayWAN/LAN Gateway
Network– Standard DSL modem and line
» Port-forwards all port requests to router.
Data Collection Server (DCS)– 700 MHz Pentium III Processor.– 256 MB RAM.– 8.0 GB Hard drive.
Universal power supply– Backup power for up to 25 minutes.
![Page 85: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/85.jpg)
WAN/LAN GatewayWAN/LAN GatewayWAN/LAN Gateway
Video Camera:– Canon Network Camera VB-C10/VB-
C10R.– Adjustable video quality and frame rate.– 16x zoom lens.– Remote camera control utility.– Built-in web server and FTP server.
![Page 86: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/86.jpg)
WAN/LAN GatewayWAN/LAN GatewayWAN/LAN Gateway
Wireless Router and Access Points:– Linksys 2.4 GHz Wireless-802.11g Router– Linksys 2.4 GHz Wireless-802.11g Access
Point– Data transfer rate = 54 Mbps– 128-bit WEP encryption, MAC or IP
address filtering
![Page 87: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/87.jpg)
Bridge Site System ComponentsBridge Site System ComponentsBridge Site System Components
Interrogator
WAP
FBG Sensors
![Page 88: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/88.jpg)
Bridge Site System ComponentsBridge Site System ComponentsBridge Site System Components
Swept laser interrogator– Simultaneously monitor up to 512 sensors
» 4 channels @ 128 sensors/channel.– Scan speeds up to 250 Hz.– Standard Ethernet port for access and control.– Built-in single-board computer and display.
![Page 89: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/89.jpg)
Bridge Site System ComponentsBridge Site System ComponentsBridge Site System Components
Fiber Bragg Grating (FBG) Sensors
![Page 90: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/90.jpg)
Bridge Site System ComponentsBridge Site System ComponentsBridge Site System Components
Fiber Bragg Grating (FBG) Sensors– Immune to EMI/RF interference.– Measure wavelength shift.– Form part of the data transmission optical
fiber.– Not electrically conductive.– Low signal loss with long lead lengths.– Can be serially multiplexed.
![Page 91: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/91.jpg)
Bridge Site System ComponentsBridge Site System ComponentsBridge Site System Components
Wireless Access Point.Universal power supply– Backup power for up to 100 minutes.
Protective housing unit– Stores interrogator, WAP, and UPS.– Temperature controlled via thermostat,
heaters, insulation, fans, etc.
![Page 92: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/92.jpg)
BEC System ComponentsBEC System ComponentsBEC System Components
Web Server
Data Storage Server
![Page 93: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/93.jpg)
BEC System ComponentsBEC System ComponentsBEC System Components
Web server.Data Storage Server (DSS)– 3.0 GHz processor.– 1.2 TB Hard drive (RAID 5).– 4.0 GB RAM.
![Page 94: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/94.jpg)
File Transfer ProtocolFile Transfer ProtocolFile Transfer Protocol
DCS saves strain data in 100 MB files– Generated ≈ 40 minutes.
100 MB files automatically compressed to 10 MB files.DSS automatically retrieves 10 MB files from DCS (≈ 6 minutes to transfer).DSS utility unzips and stitches files into larger, useful packets.
![Page 95: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/95.jpg)
Web PortalWeb PortalWeb Portal
![Page 96: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/96.jpg)
Packet AnalysesPacket AnalysesPacket Analyses
Stress cycle counting– Rain flow analysis.
Autonomous separation of vehicle/environment induced strain.Formulation of temperature/strain relationships– Nonlinear, multivariate analysis.
Estimation of transient load characteristics.Comparison with point-in-time controlled tests.
![Page 97: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/97.jpg)
What We’ve LearnedWhat We’ve LearnedWhat We’ve Learned
Standard DSL adequate for data transfer– Possible via compressed partial file transfer
and stitching utility.Verified real-time WWW interactive video and strain display.Success with off-the-shelf wireless networking equipment.Testing has proven system stability.
![Page 98: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/98.jpg)
Future Needs in SHMFuture Needs in SHMFuture Needs in SHM
PowerCostDataAssessment
![Page 99: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/99.jpg)
PowerPowerPower
The Problem: Tied to a land-based power grid.
The Solution: Alternative power sources.
![Page 100: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/100.jpg)
Alternative Power SolutionsAlternative Power SolutionsAlternative Power Solutions
Solar power.Batteries.Hydrogen fuel cells.Parasitic power sources– Bridge vibrations.– “Wind” from passing vehicles.
????
![Page 101: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/101.jpg)
CostCostCost
Some DOTs are allocating up to 5% of the bridge cost to SHM (for “important” bridges).For a “typical” $250,000 bridge, this amounts to $12,500. Need: low-cost systems that utilize “off-the-shelf” technology where possible.
![Page 102: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/102.jpg)
DataDataData
Transmission.Storage.Manipulation.
![Page 103: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/103.jpg)
Data TransmissionData TransmissionData Transmission
Two problems:– As the number of sensors increases,
currently available solutions (DSL, dial-up) may not be acceptable.
– Remote locations may not have accessibility to all currently available solutions.
![Page 104: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/104.jpg)
Data TransmissionData TransmissionData Transmission
The solutions:– Longer range (100’s of miles) wireless.– Satellite.– Improved compression algorithms.
![Page 105: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/105.jpg)
Data StorageData StorageData Storage
Problem: Although HDD space is increasingly getting larger and less expensive, likely that large bridge needs would exceed technology.Solution:– Techniques for only retaining the “legacy”
of the data.– ??
![Page 106: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/106.jpg)
Data ManipulationData ManipulationData Manipulation
The Problem: timeThe Solution: Develop computer based autonomous techniques that essentially “replace” the engineer from “touching” the data.
![Page 107: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/107.jpg)
AnswersAnswersAnswers
Problem: “So what does the data mean?”Solution:– “Smart” Engineering solutions
» Neural networks.» Fuzzy logic.» Evolutionary programming.» Artificial life.» Data Mining.
![Page 108: Bridge Health Monitoring Presentation Final-MTCBridge Health MonitoringBridge Health Monitoring zMeasurement and evaluation of bridge performance – Destructive and nondestructive](https://reader036.vdocuments.mx/reader036/viewer/2022062612/6135e6840ad5d2067647ac16/html5/thumbnails/108.jpg)
Concluding RemarksConcluding RemarksConcluding Remarks
SHM has been going on for many years.Only limits are those we imagine.However, must keep grounded by what our clients will use.