Shanghai Tower overall height of up to 632 meters, which is a super high-rise buildings. In the case of strong winds, the building will shake the feeling that it is safe?
Sure it is safe. Shanghai Tower early in the design has taken into account these issues, it is more sensitive to the role of super tall buildings of strong winds. For example, if the height of 10 meters where wind speed of 5 m / s, then the height of 300 meters where the wind speed will be more than 30 m / sec. If no measures are taken, strong winds will threaten the safety of super high-rise buildings.
To this end, high-rise buildings need to install tuned mass damper at the top. When strong winds shake the building, a huge mass of air damper will swing towards the opposite direction, thereby reducing the shaking of the building.
For example, the Taipei 101 Tower installed a damper weighing 680 tons, when under the influence of a strong typhoon, damper shaking rate of up to 1 meter.
Likewise, the Shanghai Tower also installed a wind damper - Shanghai eye, which is the total mass of up to 1,000 tons, and 126 installed in the first layer 125 (583 meters). With huge wind damper, high-rise buildings will not be severe, even sway in strong winds, thus ensuring the safety of the building.
The picture shows the Shanghai Goggles
In addition, the appearance presented tapered Shanghai Tower has a low center of gravity, which is conducive to increasing the stability of the building. And reverse the appearance of the Shanghai Tower can effectively delay the romantic, it suffered wind load by 24%.
In short, the Shanghai Tower is very safe. As Shanghai often suffer the typhoon, the building was designed with this in mind already. Unless the wind is very strong, otherwise there will be no building shaking amplitude of 1 meter.