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
| Feb 1, 2012
ULI and Greenprint Foundation create ULI Greenprint Center for Building Performance
Member-to-member information exchange measures energy use, carbon footprint of commercial portfolios.
| Feb 1, 2012
AEC mergers and acquisitions up in 2011, expected to surge in 2012
Morrissey Goodale tracked 171 domestic M&A deals, representing a 12.5% increase over 2010 and a return to levels not seen since 2007.
| Jan 31, 2012
AIA CONTINUING EDUCATION: Reroofing primer, in-depth advice from the experts
Earn 1.0 AIA/CES learning units by studying this article and successfully completing the online exam.
| Jan 31, 2012
28th Annual Reconstruction Awards: Modern day reconstruction plays out
A savvy Building Team reconstructs a Boston landmark into a multiuse masterpiece for Suffolk University.
| Jan 31, 2012
Chapman Construction/Design: ‘Sustainability is part of everything we do’
Chapman Construction/Design builds a working culture around sustainability—for its clients, and for its employees.
| Jan 31, 2012
Fusion Facilities: 8 reasons to consolidate multiple functions under one roof
‘Fusing’ multiple functions into a single building can make it greater than the sum of its parts. The first in a series on the design and construction of university facilities.
| Jan 31, 2012
Suffolk Construction to manage Lawrence & Memorial Hospital Cancer Center project in Waterford, Conn.
Leading construction management firm overseeing one of first healthcare projects in the country to utilize innovative IPD process.
| Jan 31, 2012
Perkins Eastman’s Miller appointed Chairman of the AIA International Committee
International expertise leveraged as global industry resource.
| Jan 31, 2012
KBE selected for school project in Waterbury, Conn.
Located adjacent to the existing elementary school, the $28 million, 82,000 s/f Pre-K to eighth Grade school is expected to host its first students in the fall of 2013.
| Jan 31, 2012
Construction Law Firm Allensworth & Porter, LLP adds May to the firm
Prior to joining Allensworth & Porter, May served as the staff attorney for the Texas Civil Justice League, and was responsible for drafting, analyzing, and tracking civil justice and business-related legislation during the 82nd Legislative Session.
