Earthquake Proof Tower Is The Tallest Broadcasting Tower in The World

The country of Japan is well known for its share of earthquakes and they are equally well known for their emergency preparedness. In the NTD TV news video above, a Japanese architecture firm known for building earthquake resistant high rise buildings reveals its secret design for an earthquake proof tower that will stand over 630 meters high (approximately 2,066 feet), which is the tallest broadcasting tower in the world.  To give you an idea of how high 630 meters is, a good comparison is found in the United States with the 110-story Willis Tower (previously known as the Sears Tower) in Chicago which is 1,729 feet tall.

Built to resist the strongest earthquakes in Japan, the Tokyo Sky Tree broadcasting tower will be open to the public by May 2012 and will no doubt be a popular landmark that will attract many visitors in Tokyo.

The earthquake proof design is based on a concept borrowed from the traditional Japanese wisdom utilized in the building of the ancient five-story pagodas.  One of these pagodas, the Horyu-ji Temple in Nara Prefecture, was built in the 7th century is believed to be the longest standing pagoda in Japan.

To control the sway of a building during an earthquake, the Sky Tree architects developed a system of adding mass to the core of the structure, which allows the mass to act as a balancing weight to buildings.

In the middle of the Tokyo Sky Tree tower, an emergency staircase is located in the core of the tower and acts as the mass.  The core column and surrounding steel frame are constructed separately so they will shake in different ways and repress the overall sway.

Additionally, six oil dampers have been installed in the space along the core.  These act as cushions and will absorb the energy from an earthquake and will also absorb up to 50 percent of the swaying preventing the core column from hitting the inner part of the tower.

Filed under: Disaster Preparedness

Like this post? Subscribe to my RSS feed and get loads more!