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
Cultural Facilities | Apr 7, 2015
Mies’ Martin Luther King Jr. Library to get makeover
The architects say the modernization aims to improve “Mies in a contemporary Miesian way.”
Cultural Facilities | Apr 6, 2015
Berkeley’s West Branch Library generates more energy than it uses
The 9,400-sf facility is California's first Net Zero Energy-certified building.
Codes and Standards | Apr 6, 2015
Industry groups petition for change order reform on federal projects
Nine design and construction associations ask for assurance that funds available for additional work.
High-rise Construction | Apr 6, 2015
Melbourne tower will light up depending on weather
The tower will be illuminated by 164-foot-tall beams of LED light based on weather updates from the Bureau of Meteorology.
BIM and Information Technology | Apr 3, 2015
French startup develops drone camera that overlays video with 3D images
The new drones can capture video and overlay the shot results with 3D images and augmented reality remotely.
Libraries | Apr 2, 2015
6 award-winning libraries showcase next-gen design strategies
The new Cedar Rapids Public Library and the restored Slover Library in Norfolk, Va., are among six breakthrough projects honored with 2015 AIA/ALA Library Building Awards.
Contractors | Apr 1, 2015
ABC: Nonresidential construction spending flat in February
The Associated Builders and Contractors forecasts a robust nonresidential construction spending recovery in 2015, despite an underwhelming start.
Office Buildings | Apr 1, 2015
IBM's supercomputer Watson finds new home in Manhattan's Silicon Alley
The new headquarters for the former Jeopardy champ was conceived as a showcase for Watson’s capabilities, and as an inspirational workspace for Millennials and idea generators of all ages.
Sponsored | Fire and Life Safety | Apr 1, 2015
Radiant Heat: The Invisible Killer
Where there’s smoke, there’s fire. Where there’s fire, there’s the deadly threat of radiant heat.
Modular Building | Mar 31, 2015
Phoenix apartment complex will be made from recycled shipping containers
The eight-unit complex, called Containers on Grand, was inspired by the need for affordable and sustainable housing near the city's core.
