大桥结构健康监测系统

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HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Bridges with WASHMS
• Locations • Bridge Types • Functions • Major Structural Features
Kowloon
Stonecutters Bridge
Lantau Island
Hong Kong Island
HIGHWAYS AREA DIVISION DEPARTMENT
TSING MA CONTROL BRIDGE HEALTH SECTION
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Tsing Ma Bridge 8
HIGHWAYS DEPARTMENT
SHES
DPCS
Schematic Layout of A Typical WASHMS
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Flow Chart for Normal Operation of WASHMS
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Kap Shui Mun Bridge 9
Ting Kau Bridge
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0
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
1. WASHMS refers to Wind And Structural Health Monitoring System.
2. Application: “wind sensitivity structures”, i.e. frequency lower than 1 Hz.
3. 3. Existing Bridges with WASHMS:
• Sensory System (SS) • Data Acquisition and Transmission System (DATS) • Portable Data Acquisition System (PDAS) • Data Processing and Control System (DPCS) • Structural Health Evaluation System (SHES) • Portable Inspection and Maintenance System (PIMS)
• Wind Load • Seismic Load • Temperature Load • Highway Load • Railway Load
Response Effects Monitoring
• Displacements • Stresses / Strains • Accelerations • Cable Forces • Fatigue Damage
View of the 3 bridges from Southwest Corner of TMCA
Ting Kau Bridge
Tsing Ma Bridge
Kap Shui Mun Bridge
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HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
“Current and Future Bridge Health Monitoring System in Hong Kong”
Outline of Presentation
Part 1 Part 2 Part 3 Part 4 Part 5 Part 6
Bridges with WASHMS System Architecture and Operation of WASHMS Current WASHMS Limitations of Current WASHMS Future WASHMS Typical Monitoring Results
Anomalous Data Monitoring
Investigation of Anomalous Data
No
Issue of Fault Report to EMSD
Fault Rectification and Clearance check by EMSD
Has normal operation
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Shekou
Shenzhen
Shenzhen Western Corridor
Tuen Mun Tsing Ma Bridge
Kap Shui Mun Bridge Hong Kong International Airport
Yuen Long New Territories
Tsing Yi
Ting Kau Bridge Sha Tin
Continuous Monitoring of Acquired Signals
Detection
Yes
of Anomalous
Signals?
No Data Processing, Analysis and Archiving
Structural Health Monitoring
Load Monitoring
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HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
System Architecture of WASHMS
The four WASHMSs, i.e. LFC-WASHMS, TKB-WASHMS, SWC-WASHMS and SCB-WASHMS, are all configured into six integrating modules:
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HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Part 1 Bridges with WASHMS
4
WASHMS
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Remaining Fatigue Life Estimation
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Loads
Bridge
Response
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SS-1 DAU-1
SS-3 DAU-3
RSS
HIGHWAYS DEPARTMENT
Global Dynamic Characteristics
Static Influence Coefficients
•
Bridge Responses
Tensile Force in Cables
Geometric Configurations
Strain/Stress Distributions
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Stonecutters Bridge
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Part 2 System Architecture and Operation of WASHMS
Predicted Performance
No Updating and Storage of Statistical Result and Data
Review of Monitoring Criteria and/or Evaluation Model
Production of Annual Monitoring Reports or as required
Why Bridge Health Monitoring System is needed?
• Monitoring Structural Performance and Applied Loads
• Facilitating the Planning of Inspection and Maintenance
DongJiaoTou
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HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
The two cable-stayed bridges in Shenzhen Western Corridor
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HIGHWAYS DEPARTMENT
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
青马大桥健康监测系统
1
HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
resumed within one month?
Yes
Fault Report closed and filed
Structural Health Evaluation
Evaluation of Loads
Evaluation of Response
Yes
Any Exceedance of Monitoring Criteria or Deviation from
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
PDAS
Cabling Network in Bridge includes: LCNS, GCNS and DVE
PIMS
DAU-2 SS-2
DAU-4 SS-4
CCNS
Communication with other WASHMS
(i) Tsing Ma & Kap Shui Mun Bridges - LFC-WASHMS. (ii) Ting Kau Bridge - TKB-WASHMS.
4. Future Bridges with WASHMS: (i) The Cable-Stayed Bridge (Hong Kong Side) in Shenzhen Western Corridor - SWC-WASHMS. (ii) Stonecutters Bridge - SCB-WASHMS.
• Validating Design Assumptions and Parameters
• Updating and Revising Design Manuals and Standards
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HIGHWAYS DEPARTMENT
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
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Sensory System (SS)
•
Loading Sources
Wind Loading
Thermal Loading
Traffic (Highway & Railway) Loading
Seismic Loading
Corrosion Status (Future)
•
Structural Characteristics
TSING MA CONTROL AREA DIVISION BRIDGE HEALTH SECTION
Shenzhen Section 1.6km(appro.)
(Hong Kong Section) 3.2km
Hale Waihona Puke Reclamation Area
Ngau Hom Shek
Shekou
Ngau Hom Sha
View of the 3 bridges from Northeast Corner of TMCA
Tsing Ma Bridge
Kap Shui Mun Bridge
Ting Kau Bridge
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Shenzhen Western Corridor - Route
HIGHWAYS DEPARTMENT