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
| Oct 20, 2011
Johnson Controls appoints Wojciechowski to lead real estate and facilities management business for Global Technology sector
Wojciechowski will be responsible for leading the continued growth of the technology vertical market, while building on the expertise the company has developed serving multinational technology companies.
| Oct 20, 2011
Stellar hires Navy veteran Taylor as vice president
Stellar’s federal experience includes military exchanges (large retail stores on military bases), lodging facilities for military personnel, fuel stations, youth activities centers and recreational centers.
| Oct 19, 2011
THOUGHT LEADER: Samuel S. Unger, RA, MCR, SLCR, MBA, is the Americas Real Estate Leader for Ernst & Young, LLP
Samuel S. Unger, RA, MCR, SLCR, MBA, is the Americas Real Estate Leader for Ernst & Young, LLP, Atlanta. He also serves as president of the CoreNet Global Atlanta chapter. In addition to managing 6.8 million square feet of real estate in North and South America, his responsibilities include real estate strategy for area practices, management of external professional alliances, requirements definition, business case development and approval, real estate negotiation and lease development, and oversight of construction projects for the portfolio. He holds a bachelor’s degree from Harvard College, an MLA and MArch from the University of Pennsylvania, and an MBA from Temple University.
| Oct 19, 2011
Another drop for Architecture Billings Index
Positive conditions seen last month were more of an aberration.
| Oct 19, 2011
System for installing grease duct enclosures achieves UL listing
Updated installation results in 33% space savings.
| Oct 18, 2011
Michel Bruneau wins 2012 AISC T.R. Higgins Award
The AISC T.R. Higgins Lectureship Award is presented annually by the American Institute of Steel Construction (AISC) and recognizes an outstanding lecturer and author whose technical paper(s) are considered an outstanding contribution to the engineering literature on fabricated structural steel.
| Oct 18, 2011
Dow Building Solutions invests in two research facilities to deliver data to building and construction industry
State-of-the-art monitoring system allows researchers to collect, analyze and process the performance of wall systems.
| Oct 18, 2011
Architectural leaders join Gehry to form strategic alliance
Alliance dedicated to transforming the building industry through technology.
