From ＂Earth＂ to ＂Sky＂ Hard Core Technology Helps Shanghai Prevent Typhoon.

　　Damper device of Shanghai World Financial Center photographed on September 13th. The device has two sets on the 90th floor (about 394m above the ground), each weighing 150t, to reduce the shaking of the building caused by strong wind. Xinhua news agency

　　Affected by the typhoon "Candu", it has been stormy in Shanghai since September 13th. From the ground to the sky, hard-core technology helps Shanghai prevent typhoons. In Xuhui District Urban Operation Management Center, the depth of ground water, fallen trees on the roadside, and all kinds of drainage emergency situations in the area are monitored in real time on the flood control and typhoon prevention command platform. On the skyscraper in Lujiazui, Pudong, the damper of vibration reduction and pendulum reduction device plays the role of "town building artifact" and guards the city skyline.

　　Damper device of Shanghai World Financial Center photographed on September 13th. The device has two sets on the 90th floor (about 394m above the ground), each weighing 150t, to reduce the shaking of the building caused by strong wind.

　　On September 13th, technicians of Shanghai World Financial Center checked the shaking of damper device during typhoon. The device has two sets on the 90th floor (about 394m above the ground), each weighing 150t, to reduce the shaking of the building caused by strong wind.

　　The eddy current pendulum tuned mass damper is located at the 126th floor of Shanghai Tower. This damper is independently developed by China and weighs 1000 tons. When the building is shaken by the wind force, the inertia of the damper mass produces a reaction force, which produces a reverse swing and plays a role in reducing vibration and swing (photo taken on July 27).

　　The "Shanghai Eye" art sculpture above the "eddy current pendulum tuned mass damper" on the 126th floor of Shanghai Tower (photo taken on July 27th).

　　On September 13th, the staff placed sandbags for flood control at the entrance and exit of sunken plaza in Shanghai Center.

　　Pudong Lujiazui skyscraper photographed on September 13th.

　　On September 13th, the staff used straps to fix the billboards around Shanghai Tower.

　　On September 14th, the command platform for flood control and typhoon prevention was filmed in Xuhui District Urban Operation Management Center, Shanghai.