Nyheder

Just like many other places around the World, Virginia has a lot of bridges in all shapes and forms. Most bridges in Virginia are the responsibility of the Virginia Department of Transportation (VDOT). This is also the case for the Rte. 638 Integral Bridge, which is the subject of as field study conducted by the Virginia Transportation Research Council (VTCR). The relatively new bridge is situated in Alleghany County in Virginia and crosses over Jackson River.

The purpose of the field study is to analyze stresses and forces due to thermal effects, which corresponds perfectly with the general ongoing trends towards excessive monitoring of bridges.

DS Sensors from ElastiSense Sensor Technology are used in this field study to monitor longitudinal expansion and tilt/angel of the bridge, both in relation to shifting weather/temperature changes during a day, as well as with changing seasons. The sensors are placed on the bearings of the bridge  in different angels and positions and continuously  deliver data through a datalogger.

The DS sensors are just part of a bigger set-up including other sensor types and other equipment, which ultimately serves the purpose of teaching us more about the effects of different external influences on bridges.

Learn more about bridge monitoring right here or contact us if you have a bridge monitoring project and believe our sensors can make a difference to you.

The Servia High Bridge is one of the longest bridges in Greece, with a length of 1,372 m. Its construction lasted 3 years and was completed in 1975.

Following recommendations by experts, who were concerned about its stability raising the risk of a possible collapse, the local authorities decided to close down its operation in March 2023 to proceed with urgent restoration works.

The 47-year old bridge appeared to have cracks widening and it was the aim of the experts to monitor their behavior during and after strengthening works which were based on inspection and evaluation results carried out over the last three years.

For this purpose,  our Greek partner NEOTEK supplied a wireless system comprising of six Elastisense Sensor Technology DS displacement sensors installed over major cracks, each connected to an analogue node. A central Gateway receives measurements from the nodes and these are available 24/7 over telemetry to the engineers monitoring the restoration progress.

This is just another example of how Neotek always find good solutions to complex problems. This is indeed an efficient, yet simple and easy way to monitor bridges and learn about the state they are in.

Contact us if you wish to know more about bridge monitoring or sensor technology.