Structural Vibration Solutions A/S

Ambient Vibration Testing of a Dam, Canada - Case Study

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Courtesy of Structural Vibration Solutions A/S

The measurements and analysis presented here are performed by Professor Carlos Ventura, University of British Columbia, Vancouver, Canada.

This case consider measurements conducted on a Canadian dam. The dam is 130 m long and 58 m high, and built in 1930. The measurements were conducted using an 8-channel measurement system. The sensors were Kinemetrics Episensor, forced balanced accelerometers. The measurement campaign was dívided into 20 Test Setups. Each Test Setup contain 819 seconds of data, which was the maximum size at the time of testing. Modal analysis was conducted with ARTeMIS Modal Pro.

Below are some pictures from the dam and the test:

Ambient Vibration Testing of a Dam, Canada - Case Study
Ambient Vibration Testing of a Dam, Canada - Case Study
Ambient Vibration Testing of a Dam, Canada - Case Study

The Frequency Domain Decomposition (FDD) method, available in all versions of ARTeMIS Modal, was used in the analysis showed below.

Ambient Vibration Testing of a Dam, Canada - Case Study

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