Heartily Welcome.

Non-Destructive determination of Tendon- and stay-cable-state in

Bridges (external Tendons), Guyed Bridges and Windmills.

The new measurement system „RESOCABLE®“ Sales Agency for the Netherlands, Belgium, Luxembourg and France.
© 2017 bridge-windmill-maintenance.solutions

Bridges with external

Tendons.

Measuring the eigenfrequencies of tendons is giving insight into their health state, since damages in single wires or a reduction in cross-section is changing the eigenfrequency. This can be compared with the tuning of strings in a guitar. This new quick- check method references the values taken over the years with the initial values for each tether.

Stay-Cables of Guyed

Bridges.

Guyeds can be fixed on top of a pylon and on the bridge floor or in both bridge floors and use the pylon just for bending. The method of eigenfrequency measurement can also be used for guyed bridges. However expert knowledge is required for the interpretation of the results. This acitivity will therefore be supported by BK INGENIEUR CONSULT.

Windmills with external

Tendons.

More recent design principles of hybrid-towers are using the lower part made of reinforced concrete and the upper part made of a steel construction. The lower part is stabilized by using external tendons in a concentric array. This principle is often used for towers of more than 130 m height and windmills in the multi-megawatt class.

Motivation for this new measuring

instrument.

The road systems in the Netherlands, Belgium, Luxembourg and France include many thousends of bridges, which have to carry a massively increasing load due to the permanently growing traffic in recent years. In order to recognize possible damages early enough, periodic inspections are necessary. Normally this is done by visual methods, but the disadvantage is that damages can only be detected in a quite late state. This new method using RESOCABLE® allows the non-destructive testing of bridges and windmills health by a special analysis of the eigenfrequencies of the tendons. The method was invented and developed by Prof. Stempniewski and Steffen Siegel at the Institute for Massivbau at the Karlsruhe Institute of Technology  (IMB-KIT). It is a very cost-effective quick-check.

Eigenfrequencies.

The resonance frequencies of the tendons are changing depending on their health conditions. Resonances can be excited by hammer bangs. Using special sensors and measurement systems capable to do Fourier- Analysis the change in Eigen- frequencies can be monitored over the years.
Logo for bridge and windmill predictive maintenance

Bridge and Windmill Predictive Maintenance

bridge with external tethers guyed bridges windmills with external tethers
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Heartily Welcome.

Non-Destructive determination of

Tendon- and stay-cable-state in

Bridges (external Tendons), Guyed

Bridges and Windmills.

The new measurement system „RESOCABLE®“ Sales Agency for the Netherlands, Belgium, Luxembourg and France.
© 2017 bridge-windmill- maintenance.solutions

Bridges with external Tendons.

Measuring the eigenfrequencies of tendons is giving insight into their health state, since damages in single wires or a reduction in cross-section is changing the eigenfrequency. This can be compared with the tuning of strings in a guitar. This new quick- check method references the values taken over the years with the initial values for each tether.

Stay-Cables of Guyed Bridges.

Guyeds can be fixed on top of a pylon and on the bridge floor or in both bridge floors and use the pylon just for bending. The method of eigenfrequency measurement can also be used for guyed bridges. However expert knowledge is required for the interpretation of the results. This acitivity will therefore be supported by BK INGENIEUR CONSULT.

Windmills with external Tendons.

More recent design principles of hybrid-towers are using the lower part made of reinforced concrete and the upper part made of a steel construction. The lower part is stabilized by using external tendons in a concentric array. This principle is often used for towers of more than 130 m height and windmills in the multi-megawatt class.

Motivation for this new

measuring instrument.

The road systems in the Netherlands, Belgium, Luxembourg and France include many thousends of bridges, which have to carry a massively increasing load due to the permanently growing traffic in recent years. In order to recognize possible damages early enough, periodic inspections are necessary. Normally this is done by visual methods, but the disadvantage is that damages can only be detected in a quite late state. This new method using RESOCABLE® allows the non-destructive testing of bridges and windmills health by a special analysis of the eigenfrequencies of the tendons. The method was invented and developed by Prof. Stempniewski and Steffen Siegel at the Institute for Massivbau at the Karlsruhe Institute of Technology  (IMB-KIT). It is a very cost- effective quick-check.

Eigenfrequencies.

The resonance frequencies of the tendons are changing depending on their health conditions. Resonances can be excited by hammer bangs. Using special sensors and measurement systems capable to do Fourier- Analysis the change in Eigen-frequencies can be monitored over the years.
Logo for bridge and windmill predictive maintenance
Bridge and Windmill Predictive Maintenance
bridge with external tethers guyed bridges windmills with external tethers
SiteLock