More Than Meets the Eye
The primary building structural system is steel-reinforced concrete and includes 8” post‐tensioned flat concrete slabs supported by reinforced 16” x 20” concrete columns. Post‐tensioning is a high‐strength series of steel cables that crisscross the slabs. These thick floor slabs at TwentyTwenty Apartments provide tremendously enhanced acoustic performance in addition to their enormous strength.
Another advantage of the concrete structure is its significant mass. Once the concrete reaches a common interior temperature, it is very resistant to changes in that temperature. In this way, the core temperature of the building helps moderate energy use from heating and cooling due to outside air temperature changes.