Solutions for All Types of Assets

Key Advantages

Our AIMsight structural health monitoring (SHM) offers comprehensive advantages over other monitoring solutions across all civil engineering applications.

• Global measurements: A single camera monitors the global behavior of a span. It can also make measurements of the displacements of columns and pile caps due to scour, settlement, or landslides. These displacement measurements more direct than an inclinometer measurement and often easier to interpret.
• Dynamic SHM: Perform modal analysis and follow extreme events. High-speed video-based enables remote vibration measurements. The main modes can be measured remotely, without accelerometers !
• Durable: Passive markers tracked on the image. No batteries or er electronics in hard to reach locations.
• Remote diagnostics: The camera-based system enables a global remote diagnostic after special events (earthquakes) or abnormal sensor reading, with potential visual identification of the cause
• Verifiable SHM: Interoperability with land surveyor measurements, image-data available to check the context of the measurements. Remote visual inspection by certified inspectors is available on demand.
• Scalable: Leverage the progress of image sensors with our dedicated edge-processing camera or with your own cameras and our cloud-based SHM solution
• Extensible: We offer a state-of-the-art crack monitoring system for the continuous inspection of cracks on metallic structures, see here. Our UPEC front-end electronics and our AIMcloud platform can accommodate a wide range of sensors relevant for civil engineering.

Customer Value

• Standardized and synthetic overview of the structural health state of many structures
• Prioritization of the maintenance projects to focus on the structures where abnormal settlements, deflection or vibration have been detected
• Understand the root-cause of cracks or premature degradation
• Consistent data enabling machine learning approach on aging mechanisms

Bridges

Bridges are aging while the resources for maintenance are not sufficient. The state-of-the-art processes cannot cope with the problem. The situation will become more and more acute as more bridges built in the ’60s and ’70s will reach the end of their design life. As a consequence, bridges are failing and more may do in the future.

We provide remote inspection systems able to measure bridge deformation, displacement, and cracks to deliver continuous data compliant with professional standards. The key advantage of our solution is its low cost and easy implementation that does not require traffic interruption or heavy work on the structure.

As illustrated above, a single camera can monitor many points (10 to 100) and capture a wealth of information about the bridge state evolution as well as behavior:

• Static and dynamic span deflections
• Bridge sway and vibrations
• Pile cap displacement due to scour or settlement
• Column and pier displacement due to scour or settlement
• Pillar displacement and sway
• Bridge / deck position shifts due to accidental collisions
• Thermal expansion joint and bearing motion
• Traffic-induced thermal expansion joint and bearing motion

Static and Dynamic Span Deflection Measurements

Deflection and sag measurements are useful for evaluating the condition of bridges, in particular, that of prestressed concrete structures that are often difficult to inspect.

For example, an increase in the deformation of prestressed concrete structures was measurable before the failure of the Morandi Bridge. The sag increased over 10 years, with a marked acceleration over the last year, see https://www.mdpi.com/478498.

In addition to static deformations, dynamic deformations under vehicle load as well as vibration data captured by the AIMsight camera system can track a reduction in the stiffness of the structure.

Bridge Applications Portfolio

Buildings

Capture global building motion or slab deflection, whether during the commissioning or as part of lifetime extension measures with the AIMsight system. These measurements are particularly useful when coping with older prestressed concrete structures, where a direct assessment of tendon health is often impossible.

Tunnels

Control subsidence of the ground around the tunnel as well as tunnel convergence.

• Data shared with all stakeholders: Experts, engineering firms, construction company
• Web access to the data + construction metadata such as construction phases/events
• Detailed assessment of settlement causes and amplitudes before reaching a built zone
• Pinpoint the most critical phases of tunneling work and quickly adapt techniques based on the findings.

Railways

The AIMsight system is well suited to many monitoring and measurement application on and around railway tracks. The autonomous measurement system is easy to deploy. It can be deployed on battery power for short measurement campaigns.

• Dynamic measurement of 2D rail motion
• Optical 2D displacement monitoring of rail ties
• Track displacement during construction activity in the vicinity of tracks
• Long-term curve, terrain stability or railway bridge monitoring
• Dynamic tests: Emergency braking measurements
• Measurements of strain in the tracks and the racks

Railway Bridge Monitoring

Achieve more targeted restoration work and document the compliance of older structures. Commission new structures with confidence.