Why does the Willis Tower sway?

Why does the Willis Tower sway?

Why does the Willis Tower sway?

The Willis Tower is designed to withstand the heavy winds coming off Lake Michigan, and that means that if you're standing at the top, you can feel it sway up to 3 feet (about 1 meter) in both directions before you should start to feel worried.

Do towers sway?

Believe it or not, it's normal for skyscrapers to sway. If you were near the top of the world's tallest skyscraper — the Burj Khalifa in Dubai, which has 163 floors — you would feel the building sway about two metres! ... It stops the tall building from swaying too much, helping the structure withstand heavy winds.

How far does the Empire State Building sway?

"The Empire State Building does not sway... it gives. With a wind of 110 miles per hour, the Building gives 1.

Can the Empire State Building withstand a hurricane?

Can the Empire State Building withstand a hurricane? Modern skyscrapers are designed with “wind loads” calculated at hurricane speed and a factor of 2 or more added to that. Older buildings such as the Empire State building weren't designed that way, but were heavier and thus more resistant to wind anyway.

What's the average sway of the Willis Tower?

The average sway of the building is approximately 6 inches (152 millimeters) from true center, but the building is designed to sway up to 3 feet. Willis Tower has approximately 16,100 bronze-tinted windows.

How tall is the Willis Tower from the Skydeck?

Visibility from the Skydeck is approximately 40-50 miles (65 – 80 kilometers). The average sway of the building is approximately 6 inches (152 millimeters) from true center, but the building is designed to sway up to 3 feet. Willis Tower has approximately 16,100 bronze-tinted windows.

How many states can you see from the Willis Tower?

On a clear day, you can see four states – Illinois, Indiana, Wisconsin and Michigan. Visibility from the Skydeck is approximately 40-50 miles (65 – 80 kilometers). The average sway of the building is approximately 6 inches (152 millimeters) from true center, but the building is designed to sway up to 3 feet.

How many miles of cable are in the Willis Tower?

Willis Tower contains 25,000 miles (40,223 kilometers) of electrical cable. Approximately 43,000 miles (69,200 kilometers) of telephone cable runs through the building – enough to stretch across the continental United States 15 times!


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