A tuned mass damper is a heavy mass, usually steel or concrete, mounted near the top of a tall building and tuned to swing against the structure's natural sway. By moving out of phase with wind or earthquake motion, it absorbs vibration energy and keeps the building stable and comfortable....
Skyscrapers stay up because two systems work together: a deep foundation that transfers the building's weight to firm soil or bedrock, and a stiff vertical skeleton of columns, cores, and frames that resists wind and earthquake forces. Every load, from gravity to a typhoon gust, follows a continuous path down...
The core of a tall building is the vertical spine that contains elevators, fire stairs, and service risers, and in most towers it also acts as the main structural element resisting wind and earthquake forces. Depending on the building's use and site, architects place the core at the center, edge,...
