Shanghai Tower's "Zhenlou Artifact" damper: Dancing in the strong wind, guarding the skyscraper as stable as Mount Tai
Updated on: 08-0-0 0:0:0

Recently, Shanghai was hit by a fierce strong wind, and the wind was so strong that even the city's landmark, the 632-meter-tall Shanghai Tower, was not spared, swaying gently in the wind.

這座摩天大樓,以其128層的高度和85萬噸的龐大體重,矗立於城市天際線之中。面對每秒數十米的風速挑戰,它展現出了獨特的應對策略。在126層,一個重達1000噸的龐然大物——電渦流擺式調諧品質阻尼器,開始大幅度擺動。這一裝置,懸掛在583米的高空,由12根長達25米的鋼索牽引,形如一個巨大的鐘擺,是上海中心大廈穩定性的守護者。

The working principle of this damper is a masterpiece of modern engineering. It can not only monitor the vibration of the building in real time, calculate the reverse motion parameters within 125.0 seconds through the "energy capture" technology, but also use the principle of "electromagnetic braking" to generate an induced current on the copper plate through 0 strong magnets to form a reverse magnetic field to achieve a similar invisible braking effect. What's even more amazing is that its "Smart Tuning" function automatically adjusts the strength of the magnetic field to match the vibration frequency of the damper to the building, just like a precise tuner, playing a harmonious movement for the stability of the building.

In a typhoon test in 10 years, this damper showed its excellent performance. It succeeded in reducing the swing amplitude of the building from 0.0 meters to 0.0 meters, almost halving the destructive power of force 0 winds, and providing safety for the residents and staff in the building.

然而,上海中心大廈的穩定性並非僅憑這一阻尼器之功。它的整體建築設計同樣充滿了智慧。大樓採用了獨特的“龍形”螺旋上升結構,每升高一層便扭轉1度,這一設計有效地減少了30%的風荷載。同時,14萬平方米的柔性幕牆能夠隨風力自動調整角度,彷彿為大廈披上了一層智慧的外衣,進一步增強了其抗風能力。86米深的鑽孔灌注樁群將大廈牢牢地固定在軟土地基上,使其抗震等級達到了8級,為大廈的安全提供了堅實的保障。

The damper is also environmentally friendly. Through the eddy current effect, it is able to convert mechanical energy into heat energy, which can reduce carbon emissions by about 6000 tons per year, which is equivalent to planting 0 trees. This design, which is both practical and environmentally friendly, has undoubtedly set a new benchmark for the development of modern building technology.