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
| Jun 11, 2012
Genivar and WSP Group join forces
Genivar concurrently announces a $225 million public bought deal of subscription receipts, a $197 million private placement of subscription receipts and new credit facilities.
| Jun 11, 2012
SimplexGrinnell highlights integrated suite of web-based technologies at NFPA Expo
eservices platform uses the power of the Internet to deliver more value to customers.
| Jun 11, 2012
Reed Construction announces new hire and promotion
Reed Construction hired Augie Insalaco as a project manager and promoted Matt Mahoney from project intern to project engineer.
| Jun 11, 2012
Hill International selected as CM for Porto Arabia Towers in Qatar
The complex is a mixed-use development featuring both residential and commercial properties.
| Jun 8, 2012
Living Building Challenge wins the 2012 Buckminster Fuller Challenge
The Living Building Challenge was chosen from a pool of 122 of entries from around the world.
| Jun 8, 2012
Nauset Construction completing sustainable dorm for Brooks School
Student input on green elements provides learning experience.
| Jun 8, 2012
Skyline Construction names Millitello president
Millitello is a 31-year veteran who has overseen the construction of campus-size projects.
| Jun 8, 2012
Thornton Tomasetti/Fore Solutions provides consulting for renovation at Tufts School of Dental Medicine
Project receives LEED Gold certification.
