Sail Towers

Le Lis
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The Sail Towers draw their natural inspiration from a pair of lungs linked by the trachea, which serves much the same purpose as the elevated footbridges in this scheme.

Central concrete framed elevator cores form a spine to provide lateral support and are connected to suspend the rest of the building.

Footbridges coupled with inclined braces and dampers are the theoretical springs that connect the two towers. The ends of the footbridge links are connected with tuned damping mechanisms that lock the towers together during normal wind events, but allows a measure of slip to allow the braces and dampers to dissipate energy during extreme seismic events.

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Specifications
Height (m)
261
182
Height (ft)
856
597
Floors
60
40
Gross Floor
Area (sf)
1,100,000
500,000
Column-Free
Lease Depth
40 ft
No. of Lifts
at Base
24
16
 
 


Inspiration
 
The inspiration is drawn from a pair of lungs. Lungs rely on the trachea to tie
them together, or they are nothing. The two sides work in tandem…
The science is analogous to a structural
model of a simple spring/lumped mass model.
As with the lungs, the overall performance is
best with the two masses work together in tandem, through the springs.