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Bridge Structural Health Monitoring Systems

Profiles of successful automated bridge structural health monitoring systems

(Click on the name of the project to learn more)
Isthmusbridge

Isthmus Slough Bridge, Automated Structural Health Monitoring System
Bridge type: Bascule Span
Performance Issue: Stability of bascule pier foundation
Parameters Monitored: Pier tilt (including real time warning), temperature, tide level, and span lock operation
Project Components: tiltmeters, dataloggers, hydraulic pressure transmitter, radio telemetry, data management tools.
I-5bridge
banzerbridge

Interstate 5 (Columbia River Crossing)Bridge, Automated Structural Health Monitoring System
Bridge type: Lift span on steel truss
Performance Issue: Alignment problems with lift span and counterweight blocks
Parameters Monitored: Tilt of lift span and counterweight blocks, gap between counterweight wheels and guide rails, drive motor torque, span positions, temperature,
Project Components: tiltmeters, dataloggers, laser position sensors, radio telemetry, database tools

Banzer Bridge, Automated Structural Health Monitoring System
Bridge type: Reinforced concrete deck girder (RCDG)
Performance Issue: Tension cracks in concrete girders
Parameters Monitored: Crack width (active and peak), rebar strain, concrete temperature and humidity)
Project Components: strain gages, crack monitoring, concrete temperature and moisture, high speed dataloggers, database and event data analysis tools
umpquabridge

 Umpqua River Bridge, Automated Structural Health Monitoring System
Bridge type: Swing span bridge
Performance Issue: Pivot bearing maintenance
Parameters Monitored: Drive torque, span position and velocity, wind speed and wind direction
Project Components: hydraulic pressure sensors, wind sensors, rotary encoder, high speed dataloggers, database tools
Fremontbridge
kamalsbridge

Fremont Bridge, Automated Structural Health Monitoring System
Bridge type: Steel tied arch
Performance Issue: Fatigue cracking caused by thermal loads
Parameters Monitored: Strain, temperature, wind speed and direction, air temperature and relative humidity
Project Components: strain gages, surface temperature sensors, weather station sensors, radio telemetry, database tools

Kamal's Bridge, Automated Structural Health Monitoring System
Bridge type: Steel box girder bridge
Performance Issue: Fatigue cracking
Parameters Monitored: Strain, induced displacements at connections, temperature
Project Components: strain gages, surface temperature, structural displacements, high speed dataloggers, database tools

HELPFUL LINKS

Use the links below to learn more about Bridge Structural Health Monitoring Systems and to explore the various components and tools that can be implemented.

Bridge Structural Health Monitoring System Information Links
Bridges Industry Links

All project profiles are in PDF format. Click on the icon below to get the latest copy of Aobe Reader.
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