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.
Related Stories
Multifamily Housing | Feb 18, 2015
Make It Right unveils six designs for affordable housing complex
BNIM is among the six firms involved in the project.
Office Buildings | Feb 18, 2015
Commercial real estate developers optimistic, but concerned about taxes, jobs outlook
The outlook for the commercial real estate industry remains strong despite growing concerns over sluggish job creation and higher taxes, according to a new survey of commercial real estate professionals by NAIOP.
Museums | Feb 18, 2015
Foster + Partners' National Museum of Marine Science and Technology breaks ground in Taiwan
The museum will be home to an aquarium, exhibition space, and waterfront views.
University Buildings | Feb 18, 2015
Preparing for the worst: Campus security since Virginia Tech
Seven years after the mass shootings at Virginia Tech, colleges and universities continue to shake up their emergency communications and response capabilities to shootings and other criminal threats.
Office Buildings | Feb 18, 2015
Why the mobile workplace isn't always mobile
Perkins+Will’s Janice Barnes addresses the nuance in mobility types and explains the importance of defining terms upfront.
University Buildings | Feb 17, 2015
BD+C exclusive: How security is influencing campus design and construction
Campus crime—whether real or perceived—presents Building Teams with more opportunities for early-stage consultation with university clients.
Architects | Feb 17, 2015
Architecture billings dip in January, severe weather likely to blame
“This easing in demand for design services is a bit of a surprise given the overall strength of the market over the past nine months,” said AIA Chief Economist Kermit Baker.
Multifamily Housing | Feb 17, 2015
California launches pilot program to finance multifamily retrofits for energy efficiency
The Obama Administration and the state of California are teaming with the Chicago-based MacArthur Foundation on a pilot program whose goal is to unlock Property-Assessed Clean Energy financing for multifamily housing.
Sponsored | Building Team | Feb 17, 2015
Why diversity matters
Companies in the top quartile for gender or racial and ethnic diversity are more likely to have financial returns above their national industry medians.
Multifamily Housing | Feb 17, 2015
Young Millennials likely to return home
Ninety percent of individuals born between 1980 and 1984 and who hold a Bachelor’s degree left home before they were 27 years hold. However, half of this group later returned to their parents’ home, according to a study by the National Longitudinal Study of Youth.