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I'm a structural engineer. I just finished my Ph. D. at
the University of Toronto. My focus is on high-rise
buildings and also dynamics of large structures.
High-rise buildings are very – they're very dynamic in nature.
They behave… there's a lot of movement associated
with them. So when wind strikes a high-rise building, it often
causes the building to vibrate back and forth, so much so
that people at the tops of the building can get motion sickness.
So we invented a damper for high-rise buildings. It goes
in place of a structural member, so it goes in place of concrete.
Our damper device in particular consists
of steel plates, and bonded in-between the steel plates
is a visco-elastic material, or a high damping material.
And when wind loads or earthquakes strike a
building, this visco-elastic material is stressed quite
a bit, so it absorbs a lot of energy. And we distribute
this throughout the height of the structure and, in doing
so, we add a lot of damping or energy absorption to buildings.
In the new phase of construction, you can either build up the walls,
so big, concrete walls, you can build them up and then come
in after and actually physically install these damper elements,
or you can make them monolithic, with the concrete construction,
so you can, as you're pouring the concrete, you attach the
damper devices, embed them into the concrete and then pour them.
NSERC has been quite instrumental in the development of this technology,
so we actually applied for an NSERC Idea to Innovation Grant. And we
did full-scale testing. We actually took components of an 85-storey
building in downtown Toronto, and we tested it in full scale,
subjected it to hurricanes, typical wind loads, to earthquakes, and
to actually verify if our technology works kind of the way that we
were predicting it would do. And it was quite successful.