Supertall buildings call for creative vertical transportation strategies. Hitachi Ltd. and its Hitachi Elevator Co. Ltd. division have annouced that they will build and install 95 elevators—including two that the manufacturer labels as the "world's fastest"—for the Kohn Pedersen Fox-designed Guangzhou CTF Finance Center, which will be 530 meters (1,738 feet) tall.
The two super-speedy units are designed to ascend at rates of up to 1,200 meters per minute, or about 45 mph, with a rated descent speed of 600 meters per minute. The contract also calls for 23 double-deck models running at up to 540 meters per minute, 13 ultra-high-speed units running at up to 600 meters per minute, and an assortment of medium- and low-speed elevators.)
The fastest elevators will travel a shaft height of 440 meters (from the first to the 95th floor) in about 43 seconds. The design includes a permanent magnet synchronous motor, a compact traction machine (achieved through reducing rope diameters, presumably with the aid of advanced materials), high-capacity inverters, braking materials with high heat resistance (withstanding temperatures exceeding 550°F), and a governor that is designed to control various rated speeds during ascent and descent. Active guide rollers will detect warping in the guide rails and lateral vibration caused by wind pressure, helping to ensure a smoother ride. Hitachi has also devised proprietary air pressure adjustment technology intended to help prevent the common sensation of ear blockage caused by pressure changes.
The upscale mixed-use skyscraper will encompass office, hotel, and residential space, and will be the tallest structure in Guangzhou. A 2016 completion date is planned.
Hitachi's experience with vertical transport for tall buildings includes a unit installed in Tokyo's Kasumigaseki Building in 1968—the world's fastest elevator at the time, at 300 meters per minute. The firm operates a 213-meter-tall research tower specifically for elevator development and testing.
For more, see Hitachi's original release.
Related Stories
| May 3, 2012
Ground broken for $94 million hospital expansion at Scripps Encinitas
New facility to more than double emergency department size, boost inpatient beds by 43%.
| May 3, 2012
Rudolph and Sletten, Inc. wins CMAA award
Firm recognized for the renovation of Grossmont-Cuyamaca Community College’s Student Administrative & Griffin Student Center.
| May 2, 2012
Trimble acquires SketchUp 3D modeling platform
The transaction is expected to close in the second quarter of 2012.
| May 2, 2012
Building Team completes two additions at UCLA
New student housing buildings are part of UCLA’s Northwest Campus Student Housing In-Fill Project.
| May 2, 2012
Public housing can incorporate sustainable design
Sustainable design achievable without having to add significant cost; owner and residents reap benefits
| May 2, 2012
SMPS Foundation accepting applications for Garikes Scholarship
One outstanding scholar will be selected this year to receive a $1,500 scholarship award, to be used toward academic expenses, such as tuition and fees, books, supplies, and other similar expenses.
| May 2, 2012
Sasaki selected for 2012 National Planning Firm Award
The award recognizes a firm for its body of distinguished work influencing the planning profession.
| May 1, 2012
White paper discusses benefits of diaphragm and piston flushometer valves
The white paper highlights considerations that impact which type of technology is most appropriate for various restroom environments.
| May 1, 2012
Time-lapse video: World Trade Center, New York
One World Trade Center, being built at the site of the fallen twin towers, surpassed the Empire State Building on Monday as the tallest building in New York.
