iNDTact
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Sensor technology for Bridges & Infrastructure

Information about this subject area

Knowledge of the real condition of a bridge is essential for evaluating its service life and assurance of save operation.

For the monitoring of prestressed concrete bridges with tendons at risk of stress-corrosion cracking, iNDTact offers acoustic emission monitoring systems that detect and locate prestressing tendon breaks in real time. iNDTact acts as a full-service provider, offering everything from a single source – from preparatory site-specific acoustic analyses and planning through to the installation and operation of the monitoring systems.

iNDTact also offers measurement systems that characterise vehicles passing over a bridge. They provide information such as vehicle type, axle load and the number of vehicles per day, thereby enabling the actual traffic loads to be recorded. Given the sharp rise in traffic volumes and, in particular, the increased load from lorries, this measurement allows the bridge to be assessed on the basis of its structure-specific fatigue load.

Object Specific Fatigue Load Determination

Traffic count
Axle load
Vehicle classification

Structural Health Monitoring

Operational Modal Analysis
Stress crack detection