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 28, 2012
More than 1,000 have earned EDAC certification since 2009
Milestone achieved as evidence-based design becomes a top 2012 strategy for healthcare organizations.
| Feb 28, 2012
McCarthy completes second phase of San Diego’s Scripps Hospital
Representing the second phase of a four-phased, $41.3 million expansion and remodeling project, the new addition doubles the size of the existing emergency department and trauma center to encompass a combined 27,000 square feet of space.
| Feb 28, 2012
LUMEnergi names Weinbaum president and CEO
Weinbaum’s experience spans communications, nanotechnology, electronics components, consumer products, semiconductors, software, wireless and lighting.
| Feb 28, 2012
Griffin Electric completes Medical University of South Carolina project
The 210,000-sf complex is comprised of two buildings, and houses research, teaching and office areas, plus conference spaces for the University.
| Feb 27, 2012
Consigli complete first building for Bigelow Ocean Sciences Campus
Designed by WBRC Architects Engineers in association with Perkins + Will.
| Feb 27, 2012
Hollister completes fit-out of 41,500-sf office space in Princeton, N.J.
Intricate interior project involved construction of more than 80 offices.
| Feb 27, 2012
Research Institute at Texas Children’s Hospital building receives LEED Gold
Innovative and sustainable design reflects best environmental building practices.
| Feb 26, 2012
Milwaukee U-Haul facility receives LEED-CI Silver
The new elements of the facility now include: efficient lighting with day-lighting controls and occupancy sensors, a high-efficiency HVAC system used in conjunction with a newly constructed thermal envelope to help reduce energy consumption, and the installation of low-flow fixtures to reduce water consumption.
| Feb 26, 2012
Hollister Construction awarded 42,000-sf office fit-out in Holtsville, N.Y.
Space leased by U.S. General Service Administration.
