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 6, 2012
Slight increase in nonres construction spending expected in 2012, growth projected for 2013
Commercial sector expected to lead real estate recovery.
| Feb 6, 2012
FMI releases 2012 Construction Productivity Report
Downsizing has resulted in retaining the most experienced and best-trained personnel who are the most capable of working more efficiently and harder.
| Feb 6, 2012
Kirchhoff-Consigli begins Phase 2 renovations at FDR Presidential Library and Museum
EYP Architecture & Engineering is architect for the $35 million National Archives Administration project.
| Feb 6, 2012
Batson-Cook announces the appointment of Hall as president
Hall will manage and direct all aspects of the firm’s day-to-day operations. He will be based in Batson-Cook’s Atlanta office.
| Feb 6, 2012
Siemens gifts Worcester Polytechnic Institute $100,000 for fire protection lab renovation
Siemens support is earmarked for the school’s Fire Protection Engineering Lab, a facility that has been forwarding engineering and other advanced degrees, graduating fire protection engineers since 1979.
| Feb 2, 2012
Call for Entries: 2012 Building Team Awards. Deadline March 2, 2012
Winning projects will be featured in the May issue of BD+C.
| Feb 2, 2012
VLK Architects selected for new Cypress, Texas elementary school
The Bridgeland Elementary School will be a new prototype school for the District. Designed to meet the requirements of The Collaborative for High Performance Schools.
| Feb 2, 2012
Mortenson Construction to build 2.4 MW solar project in North Carolina
Located on a 12 acre site in the Sandhills region, the 2.4 megawatt (MW) system is expected to generate approximately 3.5 million kilowatt hours (kWhs) of clean electricity on an annual basis.
| Feb 2, 2012
Shawmut Design and Construction launches sports venues division
Expansion caps year of growth for Shawmut.
