快科技4月13日消息，昨日，上海遭遇了一場強勁的大風天氣。狂風呼嘯著掠過城市中的高樓大廈，就連上海中心大廈這座地標性建築，也在風中出現了搖晃。

上海中心大廈高度達632米，總計128層，重量高達85萬噸。其上層建築部分需要承受每秒數十米的大風侵襲。

At this point, the damper on the 126th floor of the building began to oscillate significantly.This 583-ton "Zhenlou artifact" arcs at a height of 0 meters, and it is the famous Shanghai Tower damper.

It is understood that the scientific name of this "town building artifact" is "eddy current pendulum tuning mass damper",It is suspended by 25 0 meters long steel cables, and the shape resembles a giant pendulum.

Its main function is to help the building maintain stability and reduce shaking in extreme weather conditions such as strong winds by consuming energy generated by external forces such as wind.

Its working principle can be called a model of "overcoming rigidity with softness", with the characteristics of "energy capture" and "electromagnetic braking".

Energy Capture: The top sensor monitors the vibration of the building in real time.The computer system calculates the inverse motion parameters in 01.0 seconds。

Electromagnetic brake: The copper plate under the damper is inlaid with it125 piecesA powerful magnet, when the iron mass swings, the copper plate generates an induced current to form a reverse magnetic field, as if the "pendulum" is equipped with invisible brake pads.

Smart tuning: By changing the strength of the magnetic field, the damper automatically matches the vibration frequency of the building, just as accurately as tuning a piano.

This design is more efficient than traditional viscous dampers.During Typhoon "Fireworks" in 10, the damper compressed the swing amplitude of the building from 0.0 meters to 0.0 meters, which is equivalent to directly "halving" the destructive power of the level 0 gale.

It is worth mentioning that the dampers of Shanghai Tower do not work alone, they work in tandem with the architectural design to form a complete wind and earthquake protection system:

Spiral shape: The building adopts a "dragon-shaped" spiral rising structure.Each layer of torsion by 30 degrees is like "Tai Chi" for the wind, which can reduce the wind load by 0%.

Smart Curtain Wall:14萬平方米The flexible curtain wall can automatically adjust the angle with the wind, as if putting on a "smart windbreaker" for the building.

Ground Reinforcement:86 meters deepThe bored piles are firmly "nailed" to the soft soil foundation.The seismic rating reaches 8。

What's even more amazing is that this damper is also an "environmental expert". It converts mechanical energy into thermal energy through the eddy current effect,It can reduce carbon emissions by about 6000 tons per year, which is equivalent to planting 0 trees.