STRUCTURAL OPTION
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Transportation:
The main vertical transportation system for the building is provided by two gearless, belted electric traction passenger elevators located centrally. The hoisting machine is located at the top of the elevator shaft at roof level. The elevators will feature an innovative regenerative drive, which is capable of recovering energy normally lost during braking, and will put energy back onto the building’s internal grid. Another feature is the use of coated steel belts in lieu of steel cables, which will significantly reduce vibrations felt by passengers. This configuration also saves space, eliminating the need for an elevator machine room.
In addition to the elevators, there are two emergency stairwells, one at either end of the building, and accessible at the ends of the corridors.