Bilfinger Noell Structural Health Monitoring - stands for efficient & cost-effective structural monitoring of civil engineering structures. It enables the early detection and precise localization of incipient damage mechanisms under challenging environmental conditions.

Reliable & efficient support in End of Life Management

The public infrastructure is under constant observation. The distrust of engineering structures grows with every disaster that happens in the world. Due to aging and fatigue, building materials and materials of complex structures such as bridges, tunnels or retaining structures change their properties. As a result, the structural characteristics of the entire structure can change.

As a result of these changes, the maintenance and monitoring costs for public operators increase. To reliably and accurately monitor changes in material properties, Bilfinger Noell Structural Health Monitoring (BNSHM) offers a secure alarm system.



Progress in economy and safety!

Sensor-based monitoring takes the conventional verification/inspection philosophy of public operators to a new level. The monitoring provides reliable information in real time about changes in the structural integrity of the building. Maintenance tasks can thus be planned and executed more efficiently.


Smart network

A smart network of different sensors enables the monitoring of damages without having to make structural changes.

Even the smallest changes in the structural condition are recorded by intelligent and automated evaluation of data from highly sensitive acoustic emission and application-related sensor technology.

The special feature of monitoring is the integrated acoustic emission analysis. The structure of the building is continuously diagnosed and automatically reported by the installed acoustic emission system.

Detection of microstructural damage

Passive, piezoelectric sensors record the sound emissions caused by damage events such as cracks, fractures and crack bank friction in the building structure. Microstructural damages, such as crack formation at welding seams, can be detected in this way.



Data fusion

Often it is not individual damages that lead to the failure of a building structure, but the accumulation of several events. The core of the BNSHM is therefore the data fusion and intelligent evaluation of all sensor data. The result is processed and graphically displayed in an interface. Thus an event-oriented inspection can be performed.

Project examples

Monitoring of tendons in prestressed concrete bridges

  • Integral monitoring of tendons for individual wire breaks
  • Non-destructive application of the sensors on the surface of the concrete
  • No need to expose the tendons
  • Exact recording of time and place of the change of the structural condition

Exposed cladding tube

Broken tension wire

Further broken tension wire

Long-term monitoring of weld seams, plates and girders on steel bridges

  • Hotspot monitoring: focused on individual weld joints or critical areas
  • Non-destructive application of the sensors on the surface of the steel
  • Detection of crack formation and crack propagation
  • Monitoring of already existing cracks
  • Localization of newly developing damages

Remote Monitoring

Application of the sensor network at selected hotspots

Setup server terminal

The right concept for every application

Depending on the design of the sensor network, damage can be detected and localized. We can offer you the following variants of our monitoring:


  • Long term monitoring over several years
  • Short-term monitoring (during construction measures)
  • Integral monitoring of entire structures
  • Hotspot monitoring of selected areas
  • Short-term monitoring during critical load peaks
  • Test setups and studies



The primary objective of the BNSHM is to detect any weakening of the structure long before the functionality of the structure is questioned.

For this reason, Bilfinger Noell also offers monitoring during heavy load transports or other loads on building structures that exceed normal levels.
Reliable statements about changes in the structural condition during critical load peaks significantly increase safety.


Dominik Salg
Head Non-destructive testing


Bilfinger Noell GmbH
Alfred-Nobel-Str. 20
97080 Würzburg


Phone: +49 931 903 6190
Fax: +49 931 903 4010


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Formular BNSHM

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