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De l'Aqueduc Electrical Station

Montréal, QC Canada

The de l’Aqueduc station is a Hydro-Québec electrical sub-station in Lasalle, part of the electrical network of the greater Montreal region. The building evaluated by Sensequake contained a large amount of mechanical and electrical equipment, which control the circulation of current to the local transformers.

Being a 1-storey building, the majority of the testing was conducted on the roof to properly examine the flexibility and the modal properties of the structure in the event of an earthquake. The presence of high-voltage wires around the building needed to be taken into account during the designing of our test. The results obtained helped Hydro-Québec update their pre-existing finite element models.

Our testing campaign featured:

 

  • The extraction of the structure's initial baseline

  • A global test of the structure

  • A flexibility test of the roof

  • Increasing the accuracy in Hydro-Québec's finite element        model through calibration with our results 

  • Extraction of the fundamental frequencies and mode shapes of the structure


The flexibility test of the structure also allowed us to examine the effect of a shear wall present in the centre of the building upon its movement.

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