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DYNAMICS AND VIBRATION: BUILDING
ISOLATION
As cities expand, downtown real-estate becomes
more valuable and lands that were once undesirable are being transformed
into high-quality office and condominium spaces. A major challenge
for the development of lands near subways or surface railways is
overcoming ground-borne vibration, which can transmit up through
a structural system, annoying occupants and disturbing sensitive
equipment.
One solution employed by HGC Engineering is the
use of isolation pads in conjunction with a large sub-grade damping
mass, effectively providing two footings, each isolated from the
other with the system tuned to the anticipated frequency range impacting
the building.
HGC Engineering uses finite element analysis techniques
in conjunction with physical testing (where needed) in order to
tune the design, and ensure that the vibration isolation efficiency
is greatest where it is needed most.
An Isolated Building Complex
Architectural rendering of Fulton Station Condominiums and Townhomes,
built atop an existing subway corridor.

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Building Isolation System
A building vibration isolation design using isolation pads,
similar to Fulton Station in Chicago.
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