Bridges: Horsetail Fall

Case study: SOFO System

Composite wrapping
Shear strain measurement
Removable sensors

Project Description

Summary: Historic bridge monitoring during load test, monitoring of the composite wrapping efficency

Clients: Oregon Department of Transportation

Place: Oregon (USA)

Period: 1998 - N/A

Installation: Blue Road Research

Structure's short description: Historic bridge in the Columbia river area. Due to increasing loads from tourist busses the bridge was strengthened by a composite wrapping.

Aim of monitoring: Two SOFO sensors were surface installed in addition to a number of Fiber Bragg Grating Sensors embedded in the composite. The sensor measure the flexure and the shear components of the strain.

Number of sensor: 2

Main Results: The SOFO sensors are installed periodically under the bridge in conjunction with the load tests that are performed to verify the structural response of the wrapped beams

SOFO sensor installation for shear strain measurements

Bibliography:

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