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 8, 2013
NBBJ appoints Tim Leberecht Chief Marketing Officer
NBBJ, a global architecture and design firm, today announced that it has appointed Tim Leberecht as its Chief Marketing Officer. Leberecht joins NBBJ from Frog Design where he led the marketing organization from 2006 to 2013 and helped transform the company into one of the world’s foremost design and innovation consultancies.
| May 7, 2013
First look: Golden State Warriors stadium by Snøhetta, AECOM
Architects Snøhetta and AECOM have revealed their latest renderings of a new stadium for NBA basketball team the Golden State Warriors on the waterfront in San Francisco.
| May 7, 2013
Renovated bridge building will anchor Nashville riverfront master plan
Renovations to the former Nashville Bridge Company building were recently completed, including a newly-built modern wing. The facility has been re-dubbed The Bridge Building and now offers spaces for meetings, parties, weddings, and other events.
| May 7, 2013
First look: Adrian Smith + Gordon Gill skyscraper designed to 'confuse the wind'
The 400-meter-high, 116-story Imperial Tower in Mumbai will feature a slender, rounded form optimized to withstand the area's strong wind currents.
| May 6, 2013
SAFTI FIRST announces 3D Autodesk Revit models for fire rated wall, window, and door systems
SAFTI FIRST, leading USA-manufacturer of fire rated glass and faming systems, is proud to announce that Autodesk Revit models are now available for its fire rated walls, window and door systems via www.safti.com and Autodesk Seek.
| May 6, 2013
7 major multifamily residential projects in the works
A $140 million redevelopment of a landmark, 45-building apartment complex in Los Angeles is among the nation's significant multifamily developments under way.
| May 3, 2013
5 common failures in paints and coatings
As experienced designers, contractors, and owners know, most paint and coating problems are correctable, but some are especially stubborn to address. Here is a partial compendium of typical failure modes and methods for addressing the problem.
| May 3, 2013
'LEED for all GSA buildings,' says GSA Green Building Advisory Committee
The Green Building Advisory Committee established by the General Services Administration, officially recommended to GSA that the LEED green building certification system be used for all GSA buildings as the best measure of building efficiency.
