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
Multifamily Housing | Sep 10, 2019
Carbon-neutral apartment building sets the pace for scalable affordable housing
Project Open has no carbon footprint, but the six-story, solar-powered building is already leaving its imprint on Salt Lake City’s multifamily landscape.
Giants 400 | Sep 9, 2019
Top 70 Industrial Sector Architecture Firms for 2019
AECOM, Stantec, Ware Malcomb, FSB, and Macgregor Associates top the rankings of the nation's largest industrial sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Sep 9, 2019
2019 Industrial Sector Giants Report: Managing last mile delivery
This and more industrial building sector trends from Building Design+Construction's 2019 Giants 300 Report.
Codes and Standards | Sep 9, 2019
Free app calculates maximum allowable heights and areas for buildings
A free app that calculates the maximum allowable heights and areas for buildings of various occupancy classifications and types of construction has been released.
Retail Centers | Sep 6, 2019
Another well-known retailer files for bankruptcy: Here's the solution to more empty anchor stores
Where can you find the future of retail? At the intersection of experience and instant gratification.
Giants 400 | Sep 5, 2019
Top 110 Hotel Sector Architecture Firms for 2019
Gensler, WATG, HKS, HBG Design, and Steelman Partners top the rankings of the nation's largest hotel sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Architects | Sep 5, 2019
AIA launches landmark initiative to drive climate action
AIA Board of Directors approves member-led resolution to rally architects in mitigating and adapting the built environment.
Giants 400 | Sep 3, 2019
Top 140 K-12 School Sector Architecture Firms for 2019
DLR Group, PBK, Huckabee, Stantec, and VLK Architects top the rankings of the nation's largest K-12 school sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Market Data | Sep 3, 2019
Nonresidential construction spending slips in July 2019, but still surpasses $776 billion
Construction spending declined 0.3% in July, totaling $776 billion on a seasonally adjusted annualized basis.
Giants 400 | Aug 30, 2019
2019 K-12 School Giants Report: 360-degree learning among top school design trends for 2019
K-12 school districts are emphasizing practical, hands-on experience and personalized learning.
