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Dipl.-Ing. Steffen Siegel

KIT-Campus Süd - IMB
Postfach 6980
76049 Karlsruhe

Gotthard-Franz-Straße 3
76131 Karlsruhe

Tel.: +49 721 608-42985
Fax: +49 721 608-42265

info-mbVus0∂imb kit edu

Gebäude 50.31 (7.OG)

Flyer ResoCable
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Assessment of the condition of external tendons, stay cables and other guyed structures using vibration measurement
Bild ResoBridge

Nondestructive determination (NDT) of the condition of external tendons and stay cables using a patented analysis of the eigenfrequency. The road network of Germany comprises about 40,000 bridges. These bridges are exposed to a high stress due to the increased traffic. To detect bridge damage early, regular inspections are necessary. Currently, here are almost exclusively visual methods used. The disadvantage is that the damages can be detected only if they are relatively advanced. Our rapid test for in-situ inspection of external tendons and stay cables offers an inexpensive and meaningful alternative.

An examination of external tendons in hybrid towers of wind power plants can also be performed. At wind power plants the external tendons are placed almost vertically. Due to their length (partially over 100m) and installed turning points they are not meaningful verifiable with other methods.

Detection of the frequency spectrum with very high accuracy

Measurement of external tendons

Measurement of stay cables and other guyed structures

Data acquisition per measuring point within a few minutes, including installation and                     removal of the sensor

Recording of measured values without the need for the presence of specialists

Instruction of measuring staff (e.g. bridge inspector) in one-day training

Achieving a comparability between different tendons and different bridges respectively                 wind power plants

All data are saved at a central point

Comparability given by regular measurements

o At bridges as part of a major testing every 6 years according to DIN 1076

o for wind power plants for periodic inspections 

Measuring instrument (Fieldbook) can be used by touchscreen as notebook (Windows                   OS)


Keywords: building inspection, bridge construction, inspection, monitoring, external tendons, stay cables, state examination, frequency determination, frequency analysis, tension force, actual state, in situ, wind energy plant, wind energy plants, ResoCable, ResoBridge