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April 18, 2012

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World No.2 tower in Japan shows off views

A Tokyo developer took visitors up the world's tallest freestanding broadcast structure yesterday, a 634-meter tower with special technology meant to withstand earthquakes that often strike Japan.

The Tokyo Skytree is the world's second-tallest structure behind the 828-meter Burj Khalifa in Dubai, according to owner Tobu Tower Skytree Co.

The needle-like tower opens to the public on May 22.

Journalists given a tour yesterday saw sweeping if hazy views of the Tokyo skyline.

It took 50 seconds in a high-speed lift yesterday to the lower observation deck at 350 meters, and another 30 seconds to the higher deck at 450 meters.

The Skytree has a restaurant and two cafes on the observation decks, a vertigo-inducing glass floor that allows visitors to look straight down, and an emergency staircase.

The tower was built with very strong steel tubes surrounding a central concrete column and are structurally separate from each other in the tower's mid-section. In an earthquake, the concrete core and steel frame are designed to offset each other to cut the building's overall motion.




 

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