Posts tagged with "Kingdom Tower":

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Deep Underground, Researchers Testing Giant Elevators for the World’s Tallest Building

Where there are tall buildings there are also tall elevators. Saudi Arabia's Kingdom Tower, designed by Chicago-based Adrian Smith + Gordon Gill Architecture, will be the tallest building in the world if constructed as planned. The building is expected to stand 3,281 feet tall and will require elevators the likes of which the world has never seen. Luckily for the Kingdom Tower, one elevator company is researching the extremes of vertical circulation. The Finnish elevator company KONE has already begun construction of prototype elevators for the project, but these test lifts don't jut up into the sky. They drop deep beneath the earth’s surface. They company is currently testing and constructing their technologically advanced elevators in an abandoned 19th century mine shaft in South Finland. Since the site was chosen in 2008 as an ideal elevator testing ground, KONE has made progress in developing Ultrarope, a new piece of technology that will allow elevators to travel distances up to 1,000 meters: an unimaginable feat until now. Unlike most modern elevators which typically use steel cables, Ultrarope houses a carbon fiber core surrounded by a high-friction coat. The carbon fiber core is very light, reduces energy consumption noticeably, and decreases the weight of nearly all the major components operating the elevator. In addition to the markedly reduced energy consumption, this new cable material will last twice as long as regular steel lines and does not require frequent lubrication for maintenance. The Kingdom Tower will be filled with 65 elevators and escalators, each designed to maximize comfort and speed while also ensuring the safety of its occupants. KONE was previously tasked with designing the elevators for the third tallest building in the world, the Makkah Clock Royal Tower in Saudi Arabia. KONE Ultrarope (Courtesy KONE Online Bank)  
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With Great Height Comes Greater Challenges: Questions Linger as Construction Begins on Massive Kingdom Tower

A kilometer is less than a mile but still more than a Burj Khalifa. This truism means that Kingdom Tower is still set to be the worlds tallest building now that construction has begun in the Saudi Arabian city of Jeddah. Though the initial projected height of a mile has since been whittled down to a mere kilometer, problems continue to beset the oft-delayed $1.2 billion project. Investors have pinpointed April 27th as a suitable commencement date. UK companies EC Harris and Mace will be overseeing the realization of a design by Adrian Smith + Gordon Gill, no strangers to the obscenely tall tower scene. Having recently completed work on The Shard, Mace would have to stack Renzo Piano's design upon itself three times in order to approach the projected height of the Kingdom Tower. Shockingly, building things this tall comes with its fair share of hardships. A company called Advanced Construction Technology Services has been brought aboard in order to develop a method of pumping concrete that would meet the demands of the project. Elevators should prove problematic as well. The weight of a typical elevator cable cannot be supported beyond 2,000 feet. Once this first of its kind elevator is created, its not clear how human passengers will respond to the unprecedented lengths of its journeys. In a recent story in Bloomberg, Gill conceded that it remains unclear how the inner ear would respond to the rapid changes in height it would undergo while traversing the Tower by lift. Potential stumbling blocks do not reside exclusively in the sky, but can be found beneath the ground as well. The structure's foundation will extend deep enough into the ground that it will meet the salty waters of the nearby Red Sea, meaning materials capable of surviving the encounter must be found. Economically the project rests squarely upon the shoulders of $20–30 billionaire Al-Waleed bin Talal, nephew to the country's King Abdulah and chairman of the Kingdom Holding Company.