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Kingdom Tower may Dwarf Burj Khalifa

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Dr. N. Subramanian
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PostPosted: Thu Feb 27, 2014 10:05 pm    Post subject: Kingdom Tower may Dwarf Burj Khalifa Reply with quote

World's New Tallest Building
This is the first image of what's going to become the tallest building in the world by the end of the decade: The 3,280-foot (one kilometer!) Kingdom Tower. It will dwarf the 2,717-foot (828-meter) Burj Khalifa. Take a look.

Until now, there was only one blurry generic sketch. This image is an actual rendering of the finished tower. According to Chicago's Adrian Smith + Gordon Gill Architecture, the building's designers, construction will begin imminently. The foundation plans are now complete and "the piling for the tower is currently being tendered" in Jeddah, Saudi Arabia, near the Red Sea.
Mindblowing statisticsThe Kingdom Tower's numbers are impressive. The building itself will take a staggering $1.2 billion to build, "while the cost of the entire Kingdom City project is anticipated to be $20 billion," said AS+GG. The massive 3,280-foot spire will house a 5.7 million square feet (530,000 square meters) space and will beat the Burj by "at least 568 feet" (173 meter). It will have a Four Seasons hotel, a Four Seasons apartment area, office space, luxury condos and the world's highest observatory.

There will be 59 elevators, 54 single-deck and five double-deck, along with 12 escalator distributed through the Kingdom Tower. The elevators going up to the observatory deck will travel at 10 meters per second. That's 22.3 miles per hour. It will take you one minute and forty seconds to reach the top of the tower.
There's even an outdoor space at the top of the spire which will be used by the penthouse floor at level 157. You can see it sticking out in the rendering, 98 feet (30 meters) in diameter.
While it will still not reach Frank Lloyd Wright's never-built dream of the Mile High Illinois, its hard-edged, sightly asymmetrical design reminds me more of Wright's sketches than the rounded Burj Khalifa ever did.

Designs for the foundation were in place by early August 2011 and the contract for the piling was being tendered. On 16 August 2011, Langan International officially announced their involvement and that the foundation and piling had to be uniquely designed to overcome subsurface issues such as soft bedrock and porous coral rock, which normally could not support a skyscraper without settling. The foundation will be similar to that of the Burj Khalifa, but larger. It is expected to be around 60 m deep with a concrete pad of around 7,500 m2 . The concrete will have to have low permeability to keep out corrosive salt water from the Red Sea. Its depth and size is also considered to be an indicator of what the tower's final height will be. The piles will be up to 200 m deep and the pad over 90 m across, yet even still the building, which will weigh over 900,000 tons, is expected to settle. The idea is that it settles evenly enough so that the building doesn't tip or put undue stress on the superstructure. Computer modeling programs performed tests at the site to confirm that the foundation design would work. A later design for the foundation, to be constructed by Bauer in 2013, calls for 270 bored piles up to 110 m deep which have to be installed into the difficult ground conditions.

Construction of the building will rely on cutting edge technology, including the high-strength reinforced concrete and the pumps used to elevate it to record heights, similar to what was used during Burj Khalifa's construction. Bob Sinn, principal of Thornton Tomasetti states, “Concrete quality is getting better and better, as is pumping technology. There have been very strong advances in reinforced concrete over the last 20 years." He continued, “Kingdom Tower is certainly feasible. It’s not a structural challenge. Technically I think a 2 km -tall tower could be done, but I don’t think it will be done anytime soon.”

Source: http://en.wikipedia.org/wiki/Kingdom_Tower
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