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Structural monitoring

Structural monitoring is increasingly used as part of the asset management process to quantify responses to applied loading and to help detect changes. It can be used for short-term purposes, or permanent installation.

James Fisher Strainstall (JF Strainstall) provides structural monitoring systems and services to a broad range of global clients in many different sectors.

For bridges, structural health monitoring is increasingly important for bridge asset management, with the objectives ranging from operational aspects to long-term maintenance scheduling.

Construction and temporary works monitoring are required to assist in the control of on-site construction activities, which include elements of Geotechnical Monitoring

Tall buildings

With much experience gained in Dubai, Abu Dhabi, Malaysia and the UK, we provide a comprehensive monitoring service to constructors and owners of high-rise buildings.

The monitoring regime often has two distinct phases: Construction and operation. During construction, strain gauges are fitted to load carrying elements (columns and shear walls) and monitor the accumulation of dead load and creep as the building is constructed.

During operation, the principal concerns are the building’s responses to wind loading and, in affected areas, seismic loading. Monitoring systems typically include anemometers and accelerometers, which measure the response mode shapes and movement magnitudes. The dynamic sensor data can be combined with static positioning measurements, which is important for determining inter-storey drift.

Industrial plant

Process plant and factory equipment can generate abnormal loading and vibrations in their supporting structures. We provide a service for the short-term monitoring of dynamic responses, typically involving strain and vibration measurements. A key application for this is the monitoring of impact loading that results from hydraulic plant starting and stopping, which can potentially cause fatigue damage.  

Heritage structures

We support the monitoring requirements of cathedral and ancient monument owners to check for ongoing deterioration – including cracking and settlement. This provides assurance that key elements are not affected by construction works.

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